Here's what I think--I just read your post, and I swear I could have written it myself, or at least my husband could. If I'm not worried about some type of cancer or incurable genetic defect, then it's only because he's on the way to the doc because he's having chest pains!!!!

Seriously! I think you should do whatever your heart tells you, but I truly think that as a stay at home mom, I have WAY too much time in my own head, and not enough time just being around others. My head is a really scary place, so I just try to be aware when it's time to take a vacation.
These boards are perfect for that--as well as Carrie's Call a Friend advice.
I hope you figure it out, and in the meantime try to do something fun!!!! (DON"T watch Grey's Anatomy--last night's was tooo sad!)