My rashes are 80% gone but last 2 days my legs feel like 100 pounds...normal? help!!

I think I'm right around the 6 week mark.  Doctor said she thought I had PR a couple of weeks ago and that it would get worse before it gets better (which it did).  Last night I was standing up cooking and kind of randomly my legs felt super weak.  I have already been fighting fatigue (some days better than others) but this feels a little different.  It feels almost like my legs are half asleep and not getting normal blood flow to them.  Now I'm starting to wonder if I have something else even more severe.  Does anyone out there have or had something similar to this?

No, I have not heard this yet from anyone here. Did you have a biopsy done? A scrape biopsy, even if your rash is almost gone would tell you whether you have PR, if not, you can go from there. Keep us posted!