HELP Im so confused right now. I'm no rookie to them, I've done them plenty of times and really enjoyed the awesome short high. But for some reason I feel absolutely nothing now. I didn't think it was possible to build up a tolorence to whip its nor do I do them as much as other people. I've tried different brands such as "whip-it's" and "ultra pure whip" and nothing :'(. First the awesome wawawawawaw went away awhile ago but I still felt great but now I don't feel anything at all. I just did a double out of a balloon and nothing at all. I have started taking Prozac which did interfere with my oxy high the other day but I don't think it would inhibit n20. If anyone one has an answer I'd love your input. thanks!!