What Causes Pain In Lower Pelvic Area, Leg And Elbow?

Hi, I am a 48 year old African- American male and I have been having a dull pain in my right hip for a year and a half now and it doesn t seems to go away from that area. It feels like it is deep inside my hip and it stays in that area all of the time it comes and goes but the pain remains in that area. And now the dull pain is in my lower pelvic area too and been there for six months and also I have been having bone pains in my lower legs and they are sometimes severe and sharp pains in my lower leg bones and in my right elbow for a month, it s tenderness pain in my elbow. And now also pain after in my pelvic area after urinating and ejaculating. Before all of these, pains I started having urinary problems first with a weak stream, dribbling , and I have had microscopic hematuria for about twelve years. Could this be prostate cancer that i have or any other prostate condition or other medical condition that I have. Could you explain to me what this condition could be.