BUMP ON MY RIGHT RIBCAGE?!?!?

-Ok, so I was laying on my stomach watching TV and all of a sudden it feels like I was laying on something. I checked and there was nothing there. I touched the spot that felt like a thing was there and felt a little bump right under my right breast on my ribcage. I was like "WTF" and you cant see it but if you touch it something IS there. It doesn't hurt but it feels weird if you touch it. Hard like a bone; round like a button except it's not flat. I guess you can say it feels like a rounded hill (but tiny) It kinda hurts when I touch it?cyst. thats all i can think it is. its not usually dangerous. i would get it checked out just incase but im sure you'll be fine :3 save that WTF for something bigger xD