Postpartum healing

So my first baby I had a 3rd degree episiotomy. That was 4 years ago. But I recently had a baby 3 weeks ago. My dr only told me I had a 1st degree tear on my left labia when I delivered but didn’t say there was any damage to my Perineum where my episiotomy scar was. But that is where I’m having the most discomfort. I feel pretty healed for the most part but my perineum still feels uncomfortable. Especially depending on how I’m sitting or laying. Is it normal for it to be still sore and sensitive in that area after 3 weeks when there was no mention of any damage there?