I Am A 29 Year Old Male With A Healthy

I am a 29 year old male with a healthy diet and a regular five day a week workout routine. In the last year my erection strength has gone down significantly to the point where on a scale of 1-10 with 1 being completely flaccid my average erection strength is 6. While this is just enough to still have sex I'm worried with the dramatic difference compared to my previous erection strength. My erections also disappear much faster than before.