dejavu65,
It's good that you have your appointment with your doc tomorrow. Tell him exactly all of these ups and downs and feelings that way he can help.
I know the high and excited feeling and wanting it to last, it happened to me last month.
I was aware of the fact that I was hypomanic and trying to use it to my advantage, but went downhill within days. Not downhill as in depressed but- delusional wound up in hospital. Just didn't think it would happen so fast.
I too, know that dread feeling in the stomach. It's weird sometimes I wake up feeling that way- like I'm rotton to the core even thought I did nothing wrong. This disorder is so confusing, annoying and unpredictable. Keep you chin up.
And...don't be embarassed its nothing and we are all in the same boat here, we understand.
I hope you feel better.