sporadic pain in left breast

Autchalo • 30yrs old. Louisiana! Mother to 29week preemie who is now 6yrs old! Pregnant with #2 #EDD is June4
I've been having pain in my left breast. Earlier last week I did have a clogged duct but was about to get it resolved with sterile needle and warm compresses. Since then I have this sporadic pain during and after pumping. My DD comfort nurses on that side during earlier morning hours. She has a white tongue but no patches. I'm just not sure why I'm having this pain. Should I see my OB or pcp if it could be thrush? Or should we see her pediatrician? What are some of your experiences with thrush? Symptoms?