Hello, I'm 35 Weeks Pregnant And Have Pain In My

Hello, I'm 35 weeks pregnant and have pain in my whole stomach area not contractions just pain especially closer to ribs. It also really hurts to breath and I have sharp stitch like pain running up into my right shoulder tip. This is my 3rd pregnancy and never experienced this before. I have an appointment booked in with my OB tomorrow should I be a little concerned or just leave my worries until tomorrow. This has gradually been getting worse since last night.