I remember reading several articles on the medicinal benefits of marijuana on asthma. I never understood this, because smoking marijuana actually makes me short of breath and feel like my lungs are tight. I went to the doctor after smoking a lot one particular weekend, complaining about my breathing. Apparently a test confirmed that I was getting 99% of the normal oxygen volume. I think that it could have to do with the fact that it was all psychological, and I wasn't actually having breathing problems, but I believed I was due to the fact that when I used to smoke cigarettes it gave me the same problem. Anyways, to eliminate any chances I am switching to a vaporizer. But I was wondering, does anyone here with asthma actually find marijuana helps their breathing - or do they suffer from the same problems as me?