Chaco-
I have been offline for a few weeks and will share why with my own new post shortly....but I just wanted to say that I know EXACTLY how you feel. It is a pang of regret over some perceived loss of connection with others that creeps in....I also have never felt like I really fit in b/c of my lack of procreation. But you most certainly cannot "fake it" as AndreaB suggests. That is not healthy...that is how people end up with kids they resent. AndreaB sounds like she is on some sort of parental moral high horse....typical.
I also don't enjoy baby showers. I send a gift and a card...I've been to a few...but they generally make me nauseous and I feel as though I'm pasting on a fake smile. I'm a deep ecologist though, so I am really not thrilled when I hear somebody is bringing yet another person into the already overtaxed world. And I'm doubly sickened when they give the excuse that adoption is no option b/c it wouldn't be "theirs". Hello vanity.
It is difficult to swim against the current of mindless procreation, but creating a life just to fit in is really a bad idea....but I bet it happens all the time. So, buck up...you are not alone. Vent anytime you need to.
Best Wishes,
Pmo