Good evening everyone! The 36-week mark feels like the incision is sp…

Good evening everyone! The 36-week mark feels like the incision is spreading in the area of the scar from the cesarean section. It's shooting to the right side near the incision. I cough and wheeze, it hurts. What could this be? Does anyone have or had something similar? I'm going for an ultrasound tomorrow anyway, but I still want to hear from you.