Lower abdominal pain when sneezing. Anyone else?

I'm 9 months pp and anytime I sneeze I have a very uncomfortable pull feeling or pain in my lower abdomen. I've had it since my son was born but though it was just healing. I dread sneezing everytime it's so uncomfortable. Anyone else have this? If so is there a name for it? Is it diastasis recti? I also have a kyleena IUD in, placed 2 months pp. TIA