Awww...I hear ya. 

I have never been officially diagnosed with Bipolar Disorder but I think I can readily identify with most of the major symptoms.  There are certain times when I do tell myself that I should not be around people...that I know I am going to either get into an argument or say something absurd.  Or there are times when I just can't stop talking and the other person starts backing away.  It is really hard to gage how your interpersonal interactions are going to go on such days.  For the people who "get" me and are used to this from me...I trust myself to talk and be myself.  But I do try to be careful around folk that don't know me very well. 

I remember a few instances at school and at work where the teacher or a co-worker would be presenting some information and I couldn't stop interrupting.  Whatever they were saying seemed so utterly fascinating and I just wanted to ask endless questions and discuss the topic myself.  I would end up getting the looks of annoyance from the speaker and others.

You are definitely not alone in your feelings. 

Thank you so much for asking this question...I could totally relate.