It is good to see you again.
I am sorry, that you are having problems again. I really can't answer your question, but I want to share something else with you.
When I was diagnosed with Lupus in 2006, the rheumy said, because of all the muscle pain I had, that he thinks that fibro is also involved. But now, years later, we know, that all my muscle pain comes from the Lupus. We found out, when he put me on Prednisone for the first time and ALL my pain was GONE. He said if it was Fibro, Prednisone would have not helped with the muscle pain.
This means muscle pain is not always Fibro.
You know, Chloroquine sounds very familiar to me, I think I have taken it before, but I can't remember. I was put on a lot of different meds, because Plaquenil didn't work for me.
I may have been dealt a bad hand, but at least I'm still playing with a full deck. ( most of the time anyway).