I become like that when my BPD is rearing its ugly head, add a BP episode to it, and I'm an irrational mess accusing him of marrying the next lady that crosses the street AND asking me to be his best man.
I'm a girl
The advice to just chill out is spot on, don't make your worst fears come true, self-fulfilling prophecies are an actual thing.
I should know, I bled my bf dry and he ran for the hills.
Lucky me he decided he wants to love me crazy and all so he came back, ON CONDITION that I stop breaking up with him every three months. Or he really will believe its what I want.
THAT got my attention, because I never realized that me pushing him away and ending it "before he does" hurt him so badly. I thought he just went about living his life...
So far I've been able to bite my tongue for the past two years and haven't told him to eff off.
Not even once!
You're not alone, as is depicted in this thread, but like I said, for me its not a bipolar thing at all, its completely separate.
Learn to chill out and enjoy the now.
This is the thought process that has helped me the most, and so far, "the now" has lasted pretty long without me running interference.