Hai mama, gap kecil dalam jahitan memang boleh jadi normal especially kalau baru je jahit, tapi sebab ni melibatkan luka dalaman you really should check back dengan doctor or midwife yang buat jahitan tu untuk confirm semua okay dan tak perlu tindakan lanjut. A few of my mum friends yang ada kes serupa, doktor masing-masing check and reassure mereka it closed up on its own dalam few weeks, but honestly setiap luka lain-lain so better safe than sorry with internal stitches! Don't stress yourself, this is very common to worry about but the professionals who did the stitching are best orang to advise you.