Any chance of prostrate problem.

Sir, I used to mastrubate too much like 2-3 times a day from past 15 years.One month back after my evening walk I did my abdomen excise and then gone for one more time mastrubation before sleeping.At that time i got some pain around bladder and I thought it is because of my testicles( I got little injury while playing cricket in the past).So next day I consulted urologist and explained about testicle injury and I didn't told about my mastrubation thing.They scanned my testicles and said everything is normal and just take amixide h tablets for 15 days.I came back and after one day I started feeling urination for every half N hour.I consulted same urologist and I din't told them about my mastrubation thing to them again. Then they scanned my kidney, bladder and also done urine analysis. In the report all were normal. And doctor said to take oxyspas(3 in a day) for next 15 days. I took amixide h tablets exactly but not oxyspas fully.I am worrying about prostrate cancer. is der any problem