I saw several people post on a feeling of heaviness in the arms or legs. I have this feeling all the time now in my arms (used to be just with exercise) and my legs are not so much heavy feeling as weak. I have not been diagnosed with RA. I am 43 and have just been diagnosed with Lyme Disease and from my research, I am in the late stage, which I am guessing would make this Lyme Arthritis, I don't know. I have problems with jaw joint and a knee as well. I am hoping to get rid of this through the therapy for Lyme, but it seems to be getting worse since I started treatment, not better. It's only been two weeks, though, so we'll see.View Thread