Hi, 43F here and I've started to notice recently that my libido is increasing, after a long decrease since my mid-30s; it was virtually gone entirely, but has jumped up in just the last month or so

Could both of those changes have been due to natural shifts in hormones or other neurotransmitters? And if so, is this anything to be concerned about now with a rising libido? Could this be a perimenopause thing?

Husband was the first to really notice the current change, like it kinda snuck up on me this time, but since he mentioned it I've been noticing

Thank you!