Warm Milk before Bedtime

I'm beginning to think there's something to this advanced maternal age designation, as I sit and nurse Natalie to sleep with a heating pad strategically placed on my back. Somehow it just seems wrong to be clutching my back and moaning as I chase my 17 month old hither and yon*. On the other hand, Natalie's grins, giggles, and full-body laughs will keep me young on the inside even if my body totally disintegrates.

*But then again, I must be old if I use expressions like "hither and yon".