I literally have the exact thing! My breasts are large and im 23 years old, i can see a long line indent when i flex it, when i put my arm by my breast or squeeze, the long line shows from under my nipple to the bottom of my breast, when i feel it when its not foexed, under side of my breast it feels like theres a dent or empty space there. I went to the doctor last year and had a check a full breast examination, I also had a swollen armpit ok the same side which gets swollen more during my period. Anyway she checked both breasts and said they look fine, but she still refered me to the breast clinic. I was checked and had an ultrasound not exactly on this part as it was by a man and he didnt check my whole breast, and he said there ws just thick tissue there. Another lady did a full examination on me again and said it was fine and because im young i can have thicker tissue that causes this, they didnt really say anything about the indentation at all and disregarded it. This all happened last year,

i was looking at it in the mirror again last night and it just looked like a really big indentation line and it freaked me out. I font know if its because i have large breasts because when i lift the fat and flex i cant see the dent? I feel like i gained weight recently and my breasts are really large compared yo my waist and rest of my body so maybe thats why? 

I literally have the exact thing! My breasts are large and im 23 years old, i can see a long line indent when i flex it, when i put my arm by my breast or squeeze, the long line shows from under my nipple to the bottom of my breast, when i feel it when its not foexed, under side of my breast it feels like theres a dent or empty space there. I went to the doctor last year and had a check a full breast examination, I also had a swollen armpit ok the same side which gets swollen more during my period. Anyway she checked both breasts and said they look fine, but she still refered me to the breast clinic. I was checked and had an ultrasound not exactly on this part as it was by a man and he didnt check my whole breast, and he said there ws just thick tissue there. Another lady did a full examination on me again and said it was fine and because im young i can have thicker tissue that causes this, they didnt really say anything about the indentation at all and disregarded it. This all happened last year,

i was looking at it in the mirror again last night and it just looked like a really big indentation line and it freaked me out. I font know if its because i have large breasts because when i lift the fat and flex i cant see the dent? I feel like i gained weight recently and my breasts are really large compared yo my waist and rest of my body so maybe thats why?