4 w pp stitches

I had an episiotomy and a tear. I kinda looked down there last night and still saw stitches. It’s also starting to burn near the stitches a little when I pee. It didn’t happen the first few weeks which is what I was told could happen, so why is it happening now? It’s not painful down there but definitely has been uncomfortable the past few days where I believe I had a tear/have stitches. Is this normal?