I am a 35 year old married male. For the last eight months, I ve been having problems with erection. The erection is not strong enough. It started a couple of years ago, when I started having problems penetrating my wife. Since this feb, my erection became much less strong. Also, most of the times, it needs manual stimulation. Mental stimulation is no longer enough for me to get an erection. I ve had two strokes. First was nine years ago and second was three years ago. Could it be related to that? Are there any tests that need to be done? Thank you,