For years my stomach has been in lots of pain cramps, gassy, sometimes a bowel movement other times just pain and sometimes just horrible pain and knots.. I don't know what it is and lately its been really bad I have to sleep on a heating pad on my stomach to stop the pain..Also since 2006 every night my feet swell and its painful to walk on them.. I do elevate them with a pillow but I don't understand what is going on. I have hyper thyroids and a nodule in my throat/neck on the left side. Doctors say though that I am fine. I'm 24 years old and I have 1child who is 3.. I know there is something wrong but what?