yesterday I got up and was covered in hives, took a priton tablet and the hives went down, was left with lumps, but then my knees, elbows, and fingers all ached. Took a painkiller and went to bed, got up today with more hives on my arms and legs, my fingers had swollen so badly that I had to get my rings off quickly. My pointer finger won't straighten now, and my joints are hurting so much. Am off to GP at 11am. I had this before about 5 years ago and it got so bad that I couldn't walk as the balls of my feet had hives on them. I remember having tests to check my kidneys and heart hadn't be damaged, but can't remember exactly what the GP said it was.