Hi K., Good advice so far. I would definitely second what others have said, and rule out mastitis first. I had a nasty bout of that and just remember this feeling of utter exhaustion, pain, and depression when a fever kicked in and I couldn't stop shivering! I hope it doesn't get to that point! I think the difference is pain (awful, but sometimes normal, I'm afraid -- just my opinion), versus a swelling, red, hot-to-the-touch breast (again in my opinion, likely mastitis). Definitely talk to your doctor. Even over the phone this weekend, they should be able to talk you through the differences. Best of luck, and hang in there!