This is a very difficult thread for me .... however, I did want you to know how sorry I am to hear that your daughter has been diagnosed with Lupus. Please do not blame yourself for her having the disease. If family members are genetically predisposed to having some type of auto-immune disorder, and they are sharing some of the same stressors and/or aggravating factors (environment etc.), then I suppose that it is quite possible for family members to have the same disease.
You have been with us for quite some time, you've shared and gained a lot of knowledge that will be so helpful to your daughter as you help her through this. Also, I am sure you know that we are always here for both of you
Peace and Blessings
Look For The Good and Praise It!