I have adhd and every time i smoke marihuana i spew! and my mate with adhd said when he had it he did and he took the same pills as me.why is this?

Weed heightens mood: Marijuana can increase the intenity of any mood you might be in when inhaling. If you are in state of high excitation it could explain your reaction. It may also be an interaction between the sweed and your pills. Might check with your doc or pharmacist.

You vomit?: You both vomit after smoking cannabis? It may have pesticides or other chemicals mixed in. Possible effects: anxiety, depression, fear, panic , delusions, hallucinations, losing touch with reality, inattentiveness, short-term memory problems, disturbances of thought processes. Coughing, increased sputum and wheezing are not uncommon. Sounds you are suffering effects from inhaling toxins.