It sure sounds like you have got it. Watch the Vitamin-D. It is a hormone that affects autoimmune responses, but it does not act like corticosteroids. The medical practitioners seem to be largely unaware of its involvement. They had better get on the ball and face the complexities of molecular medicine. I suggest a good article below. It affects my MG. It can bounce you around. To little, and you get tired. Too much, and the MG symptoms become reactive. Use a modest supplement routine and don't change the dosage.

For Vitamin D involvement see:

Cynthia Aranow. 2011. Vitamin D and the Immune System. J Investig Med. 2011;59: 881-886.

Abstract:
It is now clear that vitamin D has important roles in addition to its classic effects on calcium and bone homeostasis. As the vitamin D receptor is expressed on immune cells (B cells, T cells, and antigen-presenting cells), and these immunologic cells are all capable of synthesizing the active vitamin D metabolite, vitamin D has the capability of acting in an autocrine manner in a local immunologic milieu. Vitamin D can modulate the innate and adaptive immune responses. Deficiency in vitamin D is associated with increased autoimmunity and an increased susceptibility to infection. As immune cells in autoimmune diseases are responsive to the ameliorative effects of vitamin D, the beneficial effects of supplementing vitamin D deficient individuals with autoimmune disease may extend beyond the effects on bone and calcium homeostasis.Key Words: vitamin D, autoimmunity, innate immunity,adaptive immunity.