Have Multiple Autoimmune Conditions, Sjogren, Seizures, Lupus, Edema On Legs And Feet, Painful Skull, Joints And Face. Why?

I have multiple auto immune conditions incl sle lupus, ra, sjogren's, etc, as well as seizures and black outs and fibro. also have hx of edema in lower legs and feet bilat. in the last week, my entire body has filled with fluid to the point it has broken out into blisters and I can move the fluid with my fingers. it is not "edema" type fluid as there is no pitting. it is extremely painful as it is compressing my joints, squeezing my neck and skull and my face feels like it is going to explode. my rheumy blew me off last week and 2 derms as well saying it was "bug bites". I just increased my dose of cellcept the weekend prior to this happening. I itch like crazy. any ideas?