are you under any kind of stress?
Not quite.. May be sometime i fear losing erection.. Or sometime i fear that i cannot ejacuate..only little..
It could all be down to that and the fact that your wanting it to happen to much and your stressed about it happening when your with your girl friend.
:/ oh no.. Really i dnt want it to happen d same during my first attempt for sex... Besides that wht could be the physical causes..like i am suffering from dehydration my doc told me that...
if your getting erections but loosing them then its more likely to be physiological rather than physical.
Just stop worrying about it as it won't help only make it worse and just let things happen naturally.