That's not a symptom spread associated with anything I've seen in the literature, although as concentrates are quite newly popular research into them is sparse. They do seem to be behind the rise in cannabis hyperemisis syndrome, so it's not out of the question that at doses nobody using the flower or standard hash would ever be exposed to something else happens.

Or that there is adultration of products sold as concentrates with something harmful.

When you say migrane do you mean a bad headache? or the seizure headache thing associated with hallucinations, slurring/difficulty speaking, and multiple days of distorted experience. Those symptoms are in line with migraines and it's possible you're triggering them. Do you have a prescription for triptans? Have you tried them as a treatment?

You probably shouldn't take something that results in days of constant vomiting though, you need to be in hospital if that's happening as aspiration and severe dehydration become significant risks during uncontrollable vomitting.

I mean I used it constantly from like 18-22 and quit easily after a week of insomnia that I just took first gen antihistamine sedatives to overcome.

It was easier to drop than world of Warcraft, it has no physical component at all. Even caffeine causes splitting headaches and brainfog.

I think most people who feel that weed is addictive haven't actually messed with addictive drugs like nicotine, opiates, benzos, meth etc. The only difficult thing about weed is how you structure your life about it, aka the habit. That's true of any avoidant behaviour though.

If you spin it (mix with tobacco) you'll fuck yourself but that's because if the nicotine.