The last couple days I've experienced muscle weakness in my legs and it scares me. I will be walking and without warning my leg will become jelly and I lose my balance. It also happens when I stand up. Last night I had family over and it happened when I turned while I was standing. Not only was i embarrassed when asked if I had been drinking but it freaks me out not knowing when it will happen. I would guess this is normal since lupus affects the muscles but is this a temporary thing or should I panic?