Thank you for the responses. I really relate to Zachsdad...my husband's diabetes and heart condition meant that for the past 4 or 5 years, sex was virtually non-existent, and in the past 2 years, we'd had sex all of 4 or 5 times. It was one of our big conflicts. I miss him terribly, and miss the affection and intimacy we had. But our sexual relationship was fraught with challenges.
That said, I had a one-night stand, with an acquaintance. I was upfront that I was not interested in a relationship and what my boundaries are. I feel slightly guilty about it, but liberated at the same time. Maybe in the light of day, shame and regret will crop up. I will have to deal with that as it comes. But having someone desire me, to be healthy enough to be with me, was really amazing.