Why do my boobs hate me?

So got diagnosed with a yeast infection under one boob didn’t think anything about the other so obviously taking a shower washing the goods and I get this hurting sensation on the other boob. My first thought is well great another boob issue. I’m 36 weeks and 3 days pregnant but now this bump comes up. Could it maybe be a plugged milk duct? Or maybe an infection in my boob. I never had these problems with my first pregnancy so why are my boobs doing this now. I’m going to ask my doctor next Wednesday what it is or could be when I have my doctors appointment! Any ideas ??

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