Hi, I'm 28 Now. Usually I Mastrubate Some Days (like

Hi, I'm 28 now. Usually I mastrubate some days (like 2 to 4 times in month). On those days , at that time when I do, my sperm ejects with force for every shots. But now my sperm is not ejecting speed as like before. It looks like a egg yolk. Pls don't ask me to do any test. What should I do to clear this doubt?