Any advice is needed, appreciated and very much wanted!

My left breast has become extremely large in the last few days. More than usual and definitely larger than the right. I’ve had severe... I mean SEVERE pain.

I’ve had some tenderness throughout the years about a week before my period but nothing like this and it’s always both breasts. I am terrified it could be something! Not only is the breast larger but so is the Areola. Even my boyfriend noticed and he’s not all that observant. LOL

The left one can’t be touched. It’s a nightmare to put anything on or near it. I am freaking out!

Any thoughts are welcome!!