I have been diagnosed with MDD and am currently taking Prozac for it. Before I started taking medication for it (over a year ago), I acted extremely irrationally, started physical fights with people I love, and one time, even walked 2 miles away from home to my significant other's house because I was so sure they were cheating on me (they weren't at all). I can barely even remember that part of my life. It was like a scary irrational haze and I felt like completely alien to my surroundings. I start acting like this when I've been off medication for a few days. Is it possible I have psychotic depression or bipolar disorder?