Small bruise like mark under one breast. Not on the underwire, but may still be irritation as my underwear doesn't fit well after weight gain. I originally saw it about two months ago but had fallen over so had a load of random bruises. Just spotted it again.
Peri so have a few weird cysts that come and go. This isn't with a lump or painful. I think it changes size and it sometimes smaller and less inflamed (not hot or infected, just a bit puffy). Under a cm. Pictures attached.
Will book a check-up but difficult to get an appointment.