Hi bmw,(great car btw)
All the symptoms you have listed are a part of Lupus ( or other autoimmune diseases), some of us have all of them and some more, some of us have some of them.
There is really no tips on what would help, some of us get help from a certain drug and others don't.
For instance most people here are on Plaquenil and get a relief from this med, it did nothing for me.
What you have to do, is work closely with your rheumatologist and figure out, what would be helpful to you.
Going to the gym is a good thing, but only if you don't overdo it, swimming is always good, no pressure on the joints.
Somebody will be along soon,to give you their advise.
BTW, welcome to WHL.
I may have been dealt a bad hand, but at least I'm still playing with a full deck. ( most of the time anyway).