Hello,

I have a very large mass in my right breast under the skin the dr in the breast clinic drew round the area he could feel the lump & it was basically a third of my breast - another thing it didn’t feel easily moveable (dr google will have you convinced this must be sinister) & redness of the skin - got it checked today & it was absolutely nothing - nothing sinister looking in the ultrasound at all! So please do not go on google I made myself ill with google & it turned out to be over nothing at all. So I hope my experience puts you a little at ease.

Not to mention most breast lumps are benign - the mass majority are benign & the percentage of breast cancer in girls your age is very low. 

The best thing you can do is go to your GP & have them take a look - they will most likely refer you to the breast clinic but don’t panic about this this is just precautionary it doesn’t necessarily mean they think it is sinister but better to get it checked for your own peace of mind

Good Luck x