Yes, I have had this happen before for months at a time. I't been years since it has been as bad as you are describing.

I was completely unable to ground myself until I learned my own techniques.

My meds helped.

Getting-yes, I know it is impossible-but getting at least 4 hrs of sleep a night helped.

The up and the no sleep rip it to crap, but getting sleep may help. Meds helped me sleep, but it ended up being high doses.

Do you have something that bores the heck out of you to do in the evenings?

Do you or can you turn off all computers...get off net? I find I can stay awake for over a day if I get caught up in the online world. It's a kind of stimulation I can't handle at night.

Sleep is a priority and yes, I do know how hard it is.

Hugs and I hope you somehow slow down with the ups and downs.

Emotions and thoughts changing so rapidly is killer.

Would it be possible for you to pick an activity that requires you to keep in a consistent state to work on it? A creative activity helps, but maybe something that requires the logical mind can push your emotions to the back a little when you need a break.

Text twist, scrabble-with a friend, sudoku, tetris

Maybe set a schedule or a timer and do these things when you find you need a break-but schduling time out a few times a day will give you that break from emotions even when you do not need it-this will also help. Retraining your mind a bit to shift into another zone.

It took me a long time to come up with a way to get outside of myself and I relied HEAVILY on having a list to refer to, because I really could not think of what I WANTED to do and that led to further anxiety. So, maybe a list of things that can be picked up and dropped pretty easily.

Hope some of this is helpful...