Thanks for asking icep707.
The only thing we can figure out - and this is simply theory - is that my body was rejecting my new knee - which was the exact thing that I was terrified might happen.
My OS used the titanium joint replacement, rather than the nickel joint replacement. And I took extra doses of antihistimines for months. I used "self-hypnosis" (telling myself over and over: I don't have time for hives. My body IS going to accept my new knee. I AM going to be okay. I don't have the luxury to get sick.). Gradually I needed the antihistimines less and less. Gradually everything got better. Then, all of a sudden, one day the hives were gone! =) So, what caused the hives? We don't exactly know.
I have Celiac Disease - which is something I don't talk about very much here on BS because I don't want the focus of this site to get distracted. I believe that it is very important to help others get through the traumatic beginning stages of recovery from this knee surgery. My body has turned against me since I have developed Celiac Disease - which is an autoimmune disease. I am allergic to more and more things as I get older - the list gets longer and longer.
I am not the only one on this site that has a major health condition besides getting a tkr. But, I am trying to keep the focus off me, and instead trying to help those that are terrified in the beginning stages of tkr recovery. I know how scared I was - I was there - Josephine saved me.
I am hoping, by posting my stages, that I can encourage others. There IS light at the end of the tunnel. Keep The Faith.