I've been feeling some slight pain in my left breast, mostly on the side and upper part. It kinda feels like a bruise when I touch it, but the skin looks completely normal. I'm a bit concerned and was wondering what might be causing this. Should I be worried? My period just finished last week. Any thoughts?

There are several possible reasons for breast pain, especially around the time of menstruation. Since your period just ended, this could be related to hormonal changes. It is common for women to experience breast tenderness or pain before, during, or after their menstrual cycle. However, other possible causes of breast pain should be evaluated and ruled out. It would be advisable to visit your physician for a consult.