I’ve been dealing with shortness of breath, wheezing, and constant coughing when trying to medicate. I am at the point that the coughing and wheezing is keeping me from being able to achieve relief. I got a chest X-Ray months ago, and all showed up clear as day, no issues whatsoever. I took a week off of THC and all of my lung issues cleared up. Then, with a single hit of vaping concentrates with a clean and sanitized Switch 2, my lungs began to constrict and the wheezing returned. I can take 3 months off and try again, but what are others experiencing and what chances are there this is only temporary versus being a permanent issue? Because if this is not going away, boy do I have a heck of a lot of glass, quartz and ruby to offload.
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Is it only happening with Concentrates..have you tried vaping with Flower only?..I remember my lungs gave me heck when I was doing concentrates but with herb I was ok..anyway, I’m sorry to hear that man.
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Unfortunately, it started with flower and now even concentrates cause the issue. Edibles do nothing for me, nor to any of the topicals I’ve tried. The Dr. is who told me it must be an allergy and the only option is to stop use. What a world.
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How big of a hit are we talking?
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For concentrates, just under a grain of rice.
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Oh man, I’m so sorry 
I’ve developed some mild allergic symptoms to flower but they’re pretty rare and only when I’m handling it, not when partaking. That’s such a nightmare
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brother, so sorry to hear you’re still struggling with this 
You could try separating terps and thc to see if its one or the other that is causing the irritation.
Decarb your weed and vape it to see if the irritation is the same. It won’t taste great, and the effects will be more sedative, but maybe it won’t cause the inflamation.
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I had a similar problem for most of this year. I had shortness of breath and breathing issues. I did all sorts of heart and lung stress tests and no issues were found other than asthma that I already knew about. Long story short, I used edibles and I didn’t vape for a couple of months. I finally started to have better breathing and I’ve been vaping for 10 days or so. I take very small hits and I use all the cooling I can get and so far, minimal coughing. Good luck.
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Could it be an intolerance to a specific terp rather than THC? The symptoms are similar to those experienced by someone I know who is alergic to limonene. It’s a difficult terp to avoid, but It may be something worth exploring
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See, I knew I was asking the right people! Luckily, I have held onto all my decarbed bud so I was able to test your theory with my Tafe Bowle set to 2. I filled one bowl and have taken 5 or so hits from the same bowl, each inhale lasting about 5-7 seconds. A little cough, which was expected and easily rolerated. I’m not hacking up a lung, I’m not feeling any lung constriction. The effects of the medication roll in slowly, but it’s there.
Game changer.
Thank you, and thanks to all for your responses!
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That is good news..I really hope this does the trick..the TB2 is pretty gentle on your lungs compared to a lot of other vapes..anyway, good to hear this & you take care..
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This whole thread is Nightmare Fuel. So happy it sounds the community is helping out. Luckily just have pollen allergy & asthma, but this is frightening information. Our earth husks are so complicated. 
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I haven’t had any allergic reactions, but I’ve certainly done enough to the point where I couldn’t get high anymore, and that’s probably the step just before allergies. I found a t-break reset a lot of things for me. And not a full cold-turkey t-break. I cut it back to no more than once a day with a portable dry herb vape (no dabs or ball vapes) for a few months and like where I ended up. I think if @RGuitar picks it back up with dabs immediately, he will lose most of the gains and fly right back into allergic reactions. You might have to severely curb your intake for a while to let your body adjust.
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So sorry to hear you are having issues. A couple of months back I had similar issues. Through ALOT of trial and error I tracked it down to Only CBD. Not one strain or brand but all CBD
The point is … Trial and Error. Follow the advise above. T-break? Try avoiding certain terpines. You might also see if an allergy pill could/would help. 1 - 24 hour Claritin a day might help if it is an allergy. Good luck!
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Just hoping OP gets better.
That barfing syndrome is out there too, to consider.
CR
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No doubt, the ball vapes and nails are put away, with plans for a 3 month recess before very slowly testing again. I’ll certainly heed your advice of limiting this new usage.
At this point I am ecstatic to feel some relief with it for the first time in months.
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I had the barfing thing .that was a terrible time ..if I remember right, it was a certain brand that was making me sick..very weird..I’m not big on dabs anymore since this all took place..
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Do you have a decarb machine?
Nope, just a decent collection of used bud. I was the de carb machine the first time around 
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(CHS)Cannabinoid Hyperemesis Syndrome a.k.a. scromiting I believe is largely caused by the commercial cannabis industry due to the chemical treatments they use for weed and bug control. You can control what you spray on your own growth but not what a profit machine may spray and do for that higher yield. Trust is a key for me and the big commercial growers are incentivized for profits and turnover which can cause questionable practices. Grow your own when you can, it’s far healthier in most cases or at least if it’s not you know who to blame.
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