i dunno about all that. its different for everyone, just like any substance really. ive been smoking weed since i was like 13 and i have never had a panic attack and i dont think its the source of anxiety for me. im almost 40 now. i am def addicted tho, theres no argument there. but i describe it as like a bad habit. like watching too much TV or being too into WoW. its a mental issue