Vitamin d allergy

I have had fibro for many years. I am having problems with vitamin d. I cannot tolerate oral supplements, they give me gerd and make my IBS flare. I cannot tolerate the sun either. At first I will get welts on my neck and chest. If I continue getting sun I then get a fine all over red rash that itches, then my gums swell and bleed and my joints hurt. I don'tknow if I am allergic to the sun or if I am allergic to the vit d my body makes from the sun. I have tried every supp out there. I have tried different brands and different strengths and taking them at different times in the day,I have tried with food and without food. Nothing works. Does anybody else have this problem? My vit d level has been critically low for years. My dr. Doesn't seem very interested helping me find a way to get some vit d into my body.