I am a 25 year old woman with a history of rheum arthritis and I have a bursa in my knee. I am experiencing swelling above my buttocks which extends on both sides of spine right around to the front pelvic area. I think it's swelling because it's like water to touch and feels like if it was drained, there would just be liquid. I have some pain when I press into an area at the back of my hip. I don't know what it is. Also, I keep having allergic reactions to just about anything - I assume I have too much histamine in my body as I can't walk outside without my body entering into some sort of allergic reaction which is very painful and leaves me very frightened. I now take piriton or other allergy tablets prior to leaving the house. Are these connected?