I have been smoking weed regularly (on average 3-4 times daily) for 13 years, and have always loved it. Very recently I was hit by a car while crossing the street which permanently blinded me in one eye and gave me a "brain contusion". Ever since, more often than not when I smoke I feel like I'm going to have a heart-attack. I think that it is an anxiety attack based on things that I have been reading, so I will have to deal with that. I would just like to know if smoking can affect how fast my brain heals, or if it can damage me any further. My doctor says I shouldn't drink any alcohol because it destroys brain-cells. He's been my family doctor for about 20 years so I can't bring up me smoking marijuana with him and don't know where to go for sound advice. I want to keep smoking, but not if I will be permanently affected. Please help!