Hi Dennylilly,
I'm sorry you're having this problems.
I have a very similar feeling to what you're describing, right before a hot flash. It lasts a few seconds - agitation or anxiety- very hard to describe but a very distinct feeling - like I have to get up and do something accompanied by a weird feeling in my stomach. It is followed by a hot flash. It took me awhile to figure out the association at first but it's been a long time now.
The only other person who described this hot flash symptom is my colorist. I was so surprised when she was telling me about that feeling she gets. Hers went away when her hot flashes did.
I don't know if that's what you are experiencing but, just wanted to share.
I still have them : (
Best of luck!