gouty arthritis
"Thanks to everyone that has made comments below. Based on your comments, I took Prednisone last night after a business trip where I had a flare and ran out of meds. I was out of options when I got home from the trip and is was too late at night to see a doctor unless I went to the ER and spend $1,000's.

When I got home and limped to the medicine stash, I found and took a Tramadol and noticed some Prednisone. The Prednisone has been sitting around for years, and I don't know how we got it, but when I searched for gout and Prednisol it took me to this page. 

I read all of the experiences here and then did some other research before taking 40 Mg at about 11:00 PM. 
By 1:00 AM, I was able to go to sleep. All fine now. Amazing."