I’ve been having same problems since I turned 25 back in march. I eat healthy, stay away from caffeine, don’t smoke, exercise 3 times a week, do martial arts 2 times a week for few hours each and drink plenty of water plus a good multivitamin. Couldn’t figure out what was causing it and just decided to blame it on my age, it was heartbreaking and a big kick to the ego! Going from 8 hour sex sessions with iron wood to barely being able to keep it up for more than a minute. My girl is on a family vacation so that has given me some time to try and solve the problem.
I’ve sat down and realized I was stressed out about a lot of things so been working on relieving that and making plans. I practice qigong (special set of breathing exercises to heal body and gain energy) but admittedly haven’t done much for the past few months but recently started taking it up again. Also noticed that my balls were smaller than they used to be, before my problems I had huge balls both of them together were close to the size of a tennis ball but now it’s less than half the size. Then I remembered as part of some of my qigong practices I used to do was every morning I’d massage my balls for 10-15 mins, circles left to right or right to left, squeezing them gently. Sure enough after a few days of doing this my morning wood came back strong and was able to get erections and keep them up for 20 mins or so felt great also my balls started to gain some size again. Gained some confidence back. Also you can rub your hands together till their hot and massage your kidneys for a few mins after you rub your nuts.
Still waiting for a new multi vitamin to come because mine are running out (source naturals men’s life force) and going to try a new bran opti-men multi vitamin. Also have 2 herbs on their way too, tribulus as well as muira puama both are cheap I think I paid under $10 for them and should help with with erections but won’t comment on that until I have tried for myself.
Thinking back I believe it was just a bunch of bottled up stress and me running my body too hard for it’s liking, just gotta take it easy for now and de-stress.
Hope something in my rambling post helps out :)