Muscle weakness

No dx yet, I have to wait a few months to get seen by rheumatologist.

I have widespread muscle soreness and weakness. Doing simple things like writing, opening jars, braiding my hair, etc cause the muscles in my upper body to be sore for days. Standing and walking for any period of time cause the muscles in my lower body to be sore for days. It’s year round but worse in the winter when it’s cold and my circulation is worse.

Any tips or advice?