17 w 5 d... Breasts hot to touch?

So I’m 17w5d with our second son, and just noticing this past week my boobs are really hot to the touch. Considerably more then the rest of my body. I’m assuming this is just because of swelling, growth, etc but I just wanted to see if any other of you ladies have experienced this and make sure it isn’t something I should be bringing up to Doc- I just don’t remember this at all with my first son and it’s been such a sudden drastic difference !