C section recovery

I’m 4 weeks postpartum and my incision area has started feeling a little sensitive, almost like a burning sensation at times. Also beneath the skin it feels hard and raised. I’m guessing it’s the scar tissue but not sure. Also my insides of my vagina area feel weird recently, almost like there’s an infection maybe. No stinking, burning or discoloration just discomfort, almost like it did when they removed the catheter. Anyone know if this is normal?