I recently(in the past few weeks)discovered that my left nipple has inverted itself when stimulated(when not, it sticks out by a small amount), while the right sticks out completely, like normal.

I haven't kept tabs on my breasts through my life, so I can't say if it's always been like this. I have a small amount of pain but it's nowhere near the nipple, which I believe is due to my binder(I am Trans). There's no discharge, or showing symptoms to cancer, but breast cancer has ran in my family.

I need second opinion incase I am over thinking this, and it's not cancer whatsoever. As said I am 17, so maybe it's puberty, may not I dunno.

Cheers for any help/advice.