Boob problems!

Hope
Has anyone else had any issues with their breasts lately? 
My soreness went away about 12 weeks in, but then I went up an entire cup size. I'm only 19 weeks and I was already "well endowed" pre-pregnancy. Now I'm an F cup. My back is killing me. I've had to go to the chiropractor once a week to relieve the tension. 
Anyone else already too heavy so early in?