Yvet, sorry to hear you are not well. Have you noticed any new symptoms? For example, do you have tingling/pain in your fingers now as well as your feet? Are you having vision trouble (such as sense of burning behind the eyes, difficulty closing your eyelids, double vision)? Do you have trouble swallowing?
This is not to alarm you but there are some autoimmune diseases that come on quickly and then develop new symptoms as they progress. If you do start noticing new problems, get to a hospital/Emergency Center immediately. Most of the autoimmunes are nasty and scary but are treatable and patients usually make close to full recovery.
Just take care to monitor your condition while you wait. Best wishes that you feel better very soon.