Help with symptoms

Hi All,
I am having some bad health issues and am getting nowhere with physicians. I'm 39 years old and was diagnosed with hodgkins 2b in 2007. I went through about 15 rounds of chemo and about 15 of radiation also. After treatment I was clear of all cancer. About a year ago I began having chest pain. A couple times I had pnemonia pretty bad but really had no symptoms. The last 2 weeks my chest burns through to my back. My muscles surrounding my spine swell and get hard as a rock. Yesterday I went to the chiropractor and he said I had 2 ribs out again. He popped them in and for awhile I felt better. I've done this routine a few times to. Its always worse in the mornings and at night. If I'm feeling good and active I have little to no signs. I get severe anxiety at times to. Just out of the blue I will lose my concentration and its like I'm in a nervous fog. Most of the time my back problem immediately follows. Has anyone ever experienced this? I feel this is a physical problem however I have had all kinds of bloodwork, ekg's, chest xray, petscan, pretty much everything other than a cat scan. I don't feel its stress however I won't rule it out. My wife was diagnosed with breast cancer right before I was diagnosed with hodgkins. Our path through cancer was real bad and she passed a few months ago. For a month or two I had major depression problems and finally found a deppresant to get me back on my feet. I don't feel depressed anymore, I'm in pretty good shape but I just cannot kick this problem. I was just wondering if anyone ever felt this way or had any suggestions. Thank you for listening and my thoughts and prayers are for you all fighting this rotten disease.