Hi you probably get this a lot. I am new to jelquing and did not do enough home work before starting. I did power jelqs right off the bat, with vaseline lube. I was doing power jeqls for about 4 days in total. I noticed that during the 3rd day my erection wasn't as strong as my first session on the first day. So i got worried and took a break. It's been 3 weeks since i have done any jelqs. I have noticed my erection is very weak, and when i get it up, it does not last very long (I have never had this problem). I also have noticed a diminished sex drive. I have gained 1/2 an inch from those 4 power jelq sessions, though I have paid a more dear price. Have I caused any permanent damage?