Water might help. Sometimes breathing exercises helped me with better with headaches. With migraines, coffee helped me. I hope you feel better soon! Trying to stay calm is probably my best advice…. I hope you find something that helps soon! It’s not fun, I know!

It's definitely the caffeine withdrawal. Tay helped me out and I can go get some Red Bulls from the store now. Unfortunately my MCAS doesn't like coffee or most other caffeinated beverages, at least not more than once every once in a while.