I am a 49 year young female with lupus, and a history of epilepsy and hyperthyroidism. I have been told I have sogrens syndrome, anticardiolipin antibodies in my blood which can cause blood clots. Was diagnosed with a superficial clot in the right leg about 9 years ago. I was told I have peripheral neuropathy - sometimes my legs and arms feel weighted down and numb. The soles of my feet often sting. My question is what do you think could be making it difficult to climb steps and walk up inclines? Pain is horrible. If I climb the steps I have to stop on each landing until the pain subsides before continuing up the steps. Can t use exercise bike. Treadmill is fine as long as it is level to the floor. As soon as it takes an incline position the leg pain begins. Wondering if lupus has affected my muscles...