left breast suddenly growing larger?

hello, I’m 22 and female and about three days ago I noticed that my left breast was heavier than my right and there is more fat(?) on the inner side of it, causing the nipple to shift slightly outward and down. It’s also softer to the touch, occasionally feels warm, and it doesn’t hurt but feels uncomfortable and I’m constantly aware of its presence. I don’t feel any lumps I think, just more skin and the right one looks the same.

I’m so concerned should I go to the ER?

Hi giee - first of all a warm welcome to this lovely forum.

I’m not medical, but I think it’s always a good idea to speak to your doctor about any changes you notice. There are many reasons for changes in breasts and the doctor is the best one to ask. Alternatively you might like to post your question to the nurses in that section of the forum, or call them on the number at the top of this page.

My very best wishes to you and I hope you can get some reassurance very soon.

Evie xx