Fibro acts up whenever I lay down to rest, When I first wake up A.M.

My muscles get in excruciating pain lately if I lay down to take a nap…..or…when I awake in the morning. I have had it for 40 years and the pain level of my muscles is now a ten. I have been under enormous stress this past year. Diagnosed with a lung disease, MAC Lung and Bronchiestasis, my cat died, I had Covid, then pneumonia, developed burning mouth syndrome, developed an anxiety syndrome and had to go in a psyche hospital for a week for help. They put me on Lexapro. Now I am on a two week stay in Denver (very high altitude) at the National Jewish Hospital to get help for the lung disease. The high altitude is hard on me.
Does anyone experience absolutely excruciating pain and tight muscles….and I forgot, when that happens, costochondritis acts up when my muscles start up.
Would appreciate anyone who can relate to share info with me. Thks.