I apologize for thinking it was your son... I was likely still kind of thinking about the other person I was trading messages with because it was a child that was ill in that situation.
Does your Mom have any visible symptoms? Such as a rash on her face that starts out looking sort of like a mosquito bite but grows and grows? Or do you notice her having problems with sore joints or anything? If you can tell us a bit more that way, perhaps we all can help you learn what you might expect, and what you can do to help your Mom so that she can stay as healthy as she can, and so that you won't be fretting and losing sleep to the point where you are not feeling well either.