Maybe someone can give me some insight?

Yesterday morning I was very energetic, I mean very energetic, worked all day long around the house etc etc.

By the time nightfall was here, I was exhausted, feeling low, and my fibromyalgia was flared up!

By bedtime, I was feeling awful. Then out of the blue, from no where, i started crying really hard and laughing at the same time, literally at the same time. I felt like i was going to collapse from exhaustion or die!

I have never experienced this intense awful feeling before.

Is it anxiety? Panic?

Anyone ever experienced this before?

Feedback Please!?!?!
thanks