I'm sooooo with you. I've been outright mean to my husband for months because I get irritable on both ends of the pole. I thought I was stable for awhile there but looking back I my have been hypomanic.

The only thing I've found that works is take a deep breath and then respond. Gives me a chance to think about my tone and how I say things. If I have to remove myself from the situation I try to do that. Of course it doesn't help much in full blown mania, but I managed to cut my nastiness down by at least 25% which is a start.