yeah man. those things really fuck with your seratonin levels.
you gotta watch doing them too often. can lead to depression and shit cause you use up all your seratonin.
what happened with me is I was doubling my dosage if I'd done it the day before. kinda like everyone says to do with paper or gelcaps. it'll catch up with you if you do it 3 or 4 days straight. or even every other day for a while.
been there, so don't feel bad. your brain will re-up it's seratonin after a while.