Just...nothing

I guess this might be a rant, though I don't really feel angry about it... I have no sex drive. At all. And it's not a big deal to me. I've been exploring perhaps being somewhere on the asexual spectrum. But I \*used\* to. I have had sexual relationships in the past and enjoyed them. Now though? Couldn't care less. No libido, no little spark of wanting, nothing... Am I alone in this? Is this yet another symptom of the great and terrible peri?