My LO is just over 10 months and I am still breastfeeding a bit. She feeds in the early a.m. and then about 3 more times throughout the day ending around 2 hrs before dinner. Just yesterday I noticed that it is quite painful when she feeds. The only one that is not painful is the first one of the day. It feels as though she is pulling really really hard. I though maybe I'm not producing enough milk since I have just gradually begun the weening process, but I can hear her gulping. Has anyone else experienced this? Should I be concerned?