Hello, I seem to have no response to visual stimulation. I can get a erection after a little bit of manual stimulation and in most cases get a pretty good erection, but i can only maintain it for 1min or so with manual stimulation. After that time frame, no matter what i can not get it back. I ve used Levitra and can go a good bit longer while on these drugs. I do notice solid erections once in awhile in the mornings, but as soon as i notice it it immediately goes away. I m currently 37 and have been dealing with this since 33 years of age. I had one instance when i was 33 using a novelty vacuum pump and i believe i may have over pumped and damaged my member. I ve had my free test and total test tested to 2.09Nl and 1.8 Free test. Based off my descriptions does it sound like a venous leak? I wish i could find a specialist in my area that deals with this type of ED.