Lump above breast

I’ve been breastfeeding my babe for almost 2 months now. And I’ve noticed a lump above my left breast. It’s been there since I started breastfeeding. It doesn’t cause any pain. It’s not huge or noticeable either. Idk if it’s from breastfeeding or what. I’m wondering if anyone else has a lump too or if anyone knows what it’s from or why it’s there?

Posted this in breastfeeding group and haven’t gotten a reply yet so I’m posting here too.