Ok so I have never done Ritalin before and I started out by snorting 36 mg, and I felt nothing, so I waited a bit, and swallowed one 27 mg pill, and I didn't feel anything, and its been about 5 hours now so I know they didn't work, but I got them straight from the prescription bottle. I just want to know why I didn't feel anything. Is it possible for me to have a tolerance without ever doing it before? all my friends think I have an abnormally high tolerance to drugs, and im wondering if that's possible. I have also snorted 1 1/2 points of molly and didn't feel that either. And one time I took two hits of acid and it worked but it seemed to wear off after about 4 hours. I just want to know why this is.