Confused Mom,
I do not think you sound selfish at all. Being tired dealing with someone who has RSD is just reality not selfishness. This list serve is somewhere where you can find others who feel like you. It is not only the physical exhaustion of fighting WC (and/or SSA) and taking your child to doctors all the time etc.; it is also the emotional toll of seeing someone you love in constant pain and being unable to do as much to help them as you would wish. I also have my 99 year old mother-in-law living with us who is often in pain and for whom I also can't do much to alleviate the pain. However, it is normal for people in their 90's to have health problems. It is not fair to see your child leading the life of someone in their 90's.
So, do not think of yourself as selfish. Linda.