still aching down there after giving birth - anyone the same ?!?!

♡ 𝓚𝓪𝓽𝓻𝓲𝓷𝓪 𝓵𝓸𝓾𝓲𝓼𝓮 ♡
Kinda feel like I'm going crazy here but I gave birth on the 13th January and had a 2nd degree tear which needed stitches. They healed just fine and the midwife did say the ones on the inside take upto 6 weeks to heal.
At the 6 week check up apppointment I told the doctor that I still always feel kinda swollen , achy down there and she examined me and said I looked to have healed beautifully so I should maybe give it more time. It's been another week since then and it still aches.
I've not have sex or put anything inside me, nothing to ever agitate me so what could it be ??????
This was my first birth