2 days post, is it normal to have sharp pain in only one boob?

Since this morning my left breast has had pain on the upper outer side, almost like a throb and burn at time. My right side feels great though. Could this be a sign of something bad? Also, last night I had to reach with my left arm very fast to stop my daughter from falling off the bed and was hoping this is just soreness from that?? Thank you!!





