Hello there!
I am sorry you are going through this right now. When I am feeling overly antsy, I try to go outside to get some air. The fresh air will help calm your nerves and hopefully you can go back to sleep and rest a bit.
I know that may not seem like much help, but it does wonders trust me. I have suffered from those manic states before so I know what you are going through.
Good luck and take care and keep posting, you will feel better.