I am 35, and past 4 to 5 months while I urinate its not flows freely while i put some pressure on the head of my penis white or yellowish grey kind of semen comes out often when ever i feel of itching at the end of my penis i will give some pressure and after semen kind comes out its back to normal. but now its continuously happening whenever i start to urinate i have to give pressure once the white matters comes out only im able to pee freely. its embarrassing to explain. can you please guide me what to do & whom to meet.