In Canada we have a reputation for apologizing for EVERYTHING ! Someone bumps into to you a store, you apologize for being in their way. But this has been taken over the top sometimes and I apologize all the time. I just apologized to my bf for texting him that I had a migraine, not really necessary.

But when I've done something out of my behavior while manic or depressed, yes I apologize. Like RB said quite well. You don't have to apologize for everthing tho either, it's not always such a good trait. No my disorder isn't an excuse but sometimes it's quite out of my control. My family and friends are pretty understanding about it. If people don't know your dx tho, you could just say.. Sorry I haven't been feeling quite myself. People are usually ok as long as you acknowledge that your behavior is off, well depending how bad it is.

Constantly apologizing tho takes a toll on your self esteem. It a bad habit I'm trying to break. Same with over worrying about what people think. Takes it's toll, and they usually are not even thinking what you thought they were, like Blackpup said.