I guess that this news doesn't surprise me. She has to learn that stress is hard on people with autoimmune diseases, and tennis is big time stress.
There is no way you can premedicate to prevent this type of stress on the body. I would not be surprised if she is almost unable to get out of bed. I bet her shoulders are really killing her also. The body can't take this type of stress normally without aches and pains. I can't imagine having sjogrens and doing this. I would think her eyes would bother her also even in spite of wearing good sunglasses.
I wish her nothing but the best, but she seems to be learning her lessons a very hard way.Irish