Hi Secretum...I agree with the others that those are all appropriate times to call. There is another option that I don't think has been mentioned -- Warm Lines. I know we have one here in my state, and didn't know if they were elsewhere. Googled and turns out they are. It would only be appropriate in your third example of course. Something else to consider.

(Btw, I've bitten myself too --- in sheer rage. Not because I thought it would make me feel better....wasn't thinking at all, just completely out of control. Whatever the reason preceding it, I just wanted to let you know that you're not alone. I was horrified after I 'came to' so to speak. I'd bitten very hard and it was obvious. I couldn't imagine that anyone would ever understand, and I felt like an animal and very alone.)

Hope your mixed episode sorts out soon. They suck.