pancho

I'm a 31 year old male, with collegiate tales of 90minute wood on several occasions. I have probably gained 30lbs since graduation, and may be answering my own question...I have always felt some performance anxiety, but within the past 5 years I've noticed a difficulty maintaining a "quality" erection. By that I mean that I'm 80% there, just not rock hard. I still get solid on occasion, just not as often as I'd like. Sex with my wife is intense, I just feel like I'm not giving her "her money's worth". Just as she's getting into it, I either ejaculate or lose the erection to semi flaccid state. Is this something that Viagra could help? I'm losing weight, so I think that can only be a good thing, but I'm worried that this situation will only worsen as the years go by. Any ideas? Thx in advance.