Could this possible be lupus?

I've been experiencing Knee pain,back pain (Lower,upper), and also elbow pains. My knee and back give out constantly has been going on for 2 months now. Also my mom called me a few days ago when I told her I was having pain (which no doctor can tell me what's causing my pains). My mom told me that she just got checked for Lupus which she has a severe case of it. She also got my sister tested along with my aunts and grandmother they all have severe case of Lupus. Is this what could be causing my pain? It will be 9 months before I can get into the doctors to do a Lupus screening around here there's a long wait list for new patients on my insurance. I know no one here is a doctor but I really would like advice