Soreness "down there" from sitting so much

Sherla
Because I spend most of my day sitting down to breast feed, I feel more sore down there and am worried that I'm not healing. The constant shifting in my seat, or getting up and down, or sliding across the bed puts pressure down there. Anyone else feel this? I tried nursing on my side laying down but my son started to gag and I got nervous. I'm almost 4 weeks PP.