For me, it's making really BIG decisions when I'm manic, and then when I'm normal again having to deal with the consequences or telling everyone that I changed my mind. For example, quitting my job(s), moving overseas, moving to a new town, becoming a Baha'i, getting "saved", deciding that I'm going to go back to school to become a math teacher/Spanish teacher/speech-language pathologist/counselor/feel-in-the-gap here, throwing all my clothes away because I've become a minimalist, throwing all my food away because I've become a super strict vegan. It's come to the point where people don't even take me serious anymore when I tell them about new ideas I have or new plans I have. I find that really embarrassing.