I'm female, 28y/o. I was diagnosed with Reactive arthritis in August and I'm showing no signs of getting better. I've had one infection after another, before and after diagnosis, and was also diagnosed with an underactive thyroid in July. I am due surgery on my spine, my file is marked urgent, only when I had my pre-op appointment I was told I had an irregular heartbeat. My surgery has been postponed until I have blood tests in six weeks for my thyroid, but couldn't my ReA be cause for an irregular heartbeat, or is there a link with all my problems? :(