I am doing the exact thing. My Pdoc is familiar with my "experiments" however, there comes a time when you have to know ... is it me? or is it them (medications). Titrating down from sleeping pills was the hardest. I went back on Restoril but it makes me nauseated in the a.m. I think the trick is to go off slowly.  I was on Lithium for 8 years - between 600 and 1200 mg. Now on 300 and wondering if I will sink or swim.  With slow titration you have "some" chemicals in the system and increasing is easy. There is a phenomon with Lithium where treatment response can change and Lithium could cease to work if you go on and off too often, so be careful. Also, much research has been done on Bipolar and antidepressants. Antidepressants can have an adverse effect causing additional depressive state, mania, anxiety, suicidal thoughts.  I would research and then discuss current symptoms as they may relate to medications.  My Pdoc believes that "less is best" and I concurr. It is easier to track when the minimum of medications are taken. Good luck.