opinion

thanks in advance.
52 yr old male thin to average build. weight fluctuates about 5 lbs or so around the holidays. Then goes back to normal in a month or so when I'm more active. I try to stay active, usually hiking 7 to 15 miles a week when the weather is nicer.Have had back problems basically my whole life. one hip higher then the other which I've tried to correct w insoles. also now told one hip slightly rotated. had a problem w frequent urination, dribbling after etc..
urologist who spent 5 to 10 minutes w me said enlarged prostate, put me on Flomax which I never wound up taking. ( dont like taking any kind of drugs)..family history of bladder/kidney stones so I've been trying to drink 50to 60 Oz of water a day which has me in the bathroom like 10 times a day. like I said I've had back problems my whole life but recently (few months) both hips bother me. it gets a little better after a few hrs of getting out of bed. I walk a few miles a day, stretch but nothing seems to really help. I take it I should see someone to rule out cancer?

thanks again