Help ! 35.5 weeks , c section scar burning !

Jade • Momma of both . 💖💙 🤰 w/ 3rd 💚

Is this normal . I did a lot yesterday trying to get things ready for baby. Maybe to much. Including lifting heavy stuff ( I didn’t have anyone to help) . It started burning last night only to the left side of my scar . Baby is still moving around ok . I’m so scared it opened on the inside . I have a ob apt in 4 hours so I’m really trying to hold off until then .