Cancer or somthing else

[Franconomi]

So my question is, is it cancer or Firbromyalgia or something else.  I have not been officially diagnosed with fibromyaligia, however I have been having body pain, headaches, joint pain, nausea,etc for the past 7 years. At first I though I had cancer. Got checked out and everything was normal. Now about 9 to 11 months ago my pain intensified. About 3 months ago I woke up with a throbbing headache, loss of hearing in my left ear,ringing noise and an earache. I went to an ENT and they determine I had an ear infection. I was given medication for it. However, the medication did not work and I had to be place on a variety of other medication.  TO this day, although the pain has somewhat subsided, the ringing noise is constant.Also, the pain traveled from my left ear and left region of my brain to the right side of my brian and to my right ear. I recently went to my doctor and she stated that my right ear had an infection. So I was given medication for it. But, also, the pain traveled down to my throat and chest area. This new pain along with my "Fibro"  pain has made my life a living hell. The thought of having cancer and/or hiv have haunted my mind. Whats even worst, I and other people have notice that I have lost some weight over the past months. I was trying to lose wieght for the first 5 months of this year by exercising and eating less junk food. I got my wieght down from 265  to 235. (I am currently 225 and 6'3 tall) However, for the past 3 months I have not exercise one bit and I have lost 10 pounds. In fact just this month I have purposely eaten more junk food. And the weight keeps coming off. before I was into body building, however since this year I have focus mostly on running, so I believe the lost of muscle mass/weight is due to not working the weights any longer. From your perspective do you think I may have brain cancer or just cancer in general? Thanks in advance