Coeliac Disease? Systematic Erythromatus Lupus?

Ok. I have Coeliac or Celiac Disease. I was wondering if anyone out there can help me. I know in some cases SLE can be ociated with this. I tick a good few of the boxes with SLE symptoms IE, Rashes that wont go away.On my arms but especially purplish spots on my legs that dont go away when pressed.Also Joint pain in bones and and swelling,depression,severe weight loss,muscle loss..Severe unknown cause of Anaemia requiring regular blood transfusions.I haven't had a period since i was 32 as I had an Hysterectomy.I have had checks done to see if I am bleeding internally but these were negetive.Seizures and blackouts.poor memory..Just to name a few. My doctor does suspect I have SLE but I haven't had more intensive tests done as yet. Can anyone tell me a bit more about the possible link between the 2 diseases and also as I am seeing my doctor this Friday.Should I bring the matter up again?. I hate being ill. I just want to know what is happening to me. I have been ill since I was 29 and I am now 38.I lost 7 stone (yes I was hugely overweight) but this was done without dieting.The weight has just fallen off me.I am tired all the time.I don't sleep well due to the pain I am in and also have Scoliosis of my upper spine.Any info would be of great help.Many Thanks in advance