I get fits when I'm manic that I get so physically agitated that I want to throw or hit things, but I don't. I usually just scream a lot. When I'm manic I'll get into yelling matches with my girlfriend that can go for hours. Which is really kind of unfair to say because she doesn't yell at all. She just sits and ignores me while I yell. I'm paranoid all the time that she'll leave me, whether it's because I think she is cheating, or just wants someone who doesn't fly off the handle. Luckily she has never questioned my diagnosis, and has supported any treatment I want, but I still always wait for her to hit the point where it is too much and leaves. She tells me it's irrational for me to think like that, but I do anyway.