3weeks post op from nissen fundoplication surgery

I've been post op for 3weeks, i go a week without bowel movements before the stool softners will kick in. I'm also having very bad pains in my upper right side under my breast and ribs. I've been getting so nauseated they I get a massive headache. Does anyone know what's going on? I don't see Mt dr until march 20th

Could be a post op complication; this surgery can cause problems. Your doctor is the best person to consult about this.  You could always ask for your appointment to be brought forward.