Hello cremedelacreme: I've always also been a very sensitive person. I will ruminate about something someone said, or did, all day & often into the next & beyond. I have no tolerance for argument or disagreement. I don't know why this is the case. It's just the way I've always been. It is one of the reasons I now just keep to myself as much as possible.

One thing that has seemed to help a little bit recently is to simply allow myself to ruminate over things as much as my brain seems to want to. Where previously I would have tried to divert my mind elsewhere, & curse my inability to let go, recently I've begun to say... okay just do it... ruminate as much as you want, brain... I don't care...

As for the quivering lips & crying, I don't know what to suggest. I get really strong heart palpitations at the drop of a hat, as they say. There's no way to prevent it or stop it (other than to leave the situation.) Perhaps some therapy of one sort or another might help. I don't know if such therapies as DBT or CBT deal with this sort of thing.