You should definitely get it checked out but more importantly don't stress about it. You won't know anything until you have more information. Good luck and God bless.

I’ve noticed that mine come any time I have sun exposure but they don’t seem to go away?

Oh I understand, my mother fought breast cancer at age 46 and is now fighting a second form. Definitely good to be getting checked out. Glad it is not hurtin or inverted. Can you feel a lump? I had a bruise on the top of my breast a couple weeks ago and it freaked me out but I did not go in. I bruise very easily these days, although it was an uncommon place to have one random bruises is not uncommon for me and it did go away on it's own. Praying yours does to without any further concerns or problems poppin up!

They go away with treatment

You May be going through a flare i has one in my neck