I know I had quite significant pain in my hands, wrists, elbows and shoulders after having my bundles of joy. In addition shocking neck pain (which I had hope would resolve if I was not working as a Pod!) and a clicky hip after #2 was born (10lb-er!)!
I eventually worked out the neck pain was from constantly checking to see if the baby was attached properly for feeding.
The arm, wrist and hand pain from holding a 5+kg baby for many hours of the day.
My parasthesia in my right forearm was from spending hours next the cot with my arm resting on the guard rail, patting the first little bugger while he didn't sleep! (Don't get me started on first time parenting!!) Simple nerve compression that resolved when I bought a sling and accepted the fact that my child was just SO intelligent he was never going to sleep.
My shoe size went up in late pregnancy and never went back down. Being the Podiatrist I am I went with the flow instead of insisting "my feet were a size x, have always been a size x and will always be a size x". (as many of our patients do!)
So my first two things to rule out would be baby related activities, and change in shoe size - shoes that are too small will cause digital pain! (maybe I should publish that piece of original wisdom!! LOL!)
Most importantly, when they tell you having a baby ruins your body, they're not just talking about your pelvic floor....everything is at risk! :)