Sick Dad

My Dad is very ill. He has lost a tremendous amount of weight in the past two months, loss of appetite and says he feels full all of the time. My Dad has always been over 200 pounds and is now down in the 170's. I took him to the gastroenterologist and he did tests and sent us to a urologist who did a prostate procedure last Friday. With that came more discomfort but no relief with the stomach problems, constipation, etc. Now we find that he is very anemic and again with labs, etc. We have done a sonogram, CTScan, Xrays, bloodwork and still do not now what is going on. We go back again tomorrow to see if the cardiologist has cleared him for colonoscopy. We are afraid that he may have internal bleeding that is causing the anemia. I am so tired and frustrated that I do not know where to turn. Please say a prayer for my Dad. He is 79 years old but I still need him to be around for a while longer.