I've been having occasional sharp, shooting pain in one or both breasts, usually after nursing my son (just turned 1 year). I'm wondering if it could be thrush, or something else - it's not consistent, and he doesn't seem to have any symptoms. We've gone this long with no problems, except one bout with mastitis about 5 months ago. Should I call my GP or OB/GYN to get treated? Or are there other options?