How To Treat Ankylosing Spondylitis?

I have the auto immune disorder Anykolosing Spondolitis and I am now on Huimara and Sulfasalizine. For a long time now I have had extreme fatigue. Now my blood pressure is being a little low sometimes, my heart races all of a sudden, even when I m being inactive and I can feel very regular palptations. I have had some blurry vision at times, and get nausa and dizzy very easy. Mostly my blood work seems to be good, except it showed that my cortisol is off. They did a test on my Adrenal glands and they are working. I don t rest well at night and feel like sleeping during the day. My doctors don t know what is wrong, but are going to do a tilt table test. I feel like no one really believes that I m sick, since I have no signs of valve problems or heart diese. Haven t heart about the heart monitor that I wore for twenty-four hrs. I m 41 and had a brother die of kidney cancer at 40, and a brother that died at 37 in his sleep for no apparent reason. My Dad died of cancer and my Mom has heart problems and is diabetic, so were her parents and my Dads Mom had parkinsons. I just want to feel better and be able to get through my day without needing to sleep for a couple of hrs. durning the day to just muttle through! Get tired just getting ready for the day. Help!!! I m so tired of being sick and tired!