You have my empathy!
I had 3 youngsters within 2-3 years of each other; I'm a professional web geek spending half my day at the keyboard, and there are probably numerous activities involving repetitive motion that I can't even put a sore finger on, right now. Glucosamine chondroitin really does help the joint pain, as well as a nice session with a resistance band to stretch out even the shoulders.
You may want to see your doctor, again, and get some help with your self-therapy and healing. Better that than to develop long term injuries.