Hello! I want to know what this tender spot that looks like a light pink place/feels like a bruise is on my breast! I'm scared that it may be Mastitis, but im an overall healthy person, and I dont have children and I dont breastfeed and I havent had any c

Possibly a cyst. A tender area on the breast with overlying redness could be many things. Fibrocystic disease is common, and depending on where you are in your cycle may have an effect. If it continues to worsen or if the redness is spreading I'd have a doctor take a look. A superficial skin infection can also be a possibility.