Sqad ( Or Anyone Else )

[Bazile]

What is the most likely cause of upper arm muscle and joint pain ( in the absence of an injury ) ?

The person is taking the following medication -

Doxazosin
Verapamil hydrochloride
Atorvastatin
lisinopril & Hydrochlorothiazide

[woofgang]

To sling another possibility into the ring....does the person sleep heavily in one position or sit for long periods in one position?