Aiyoh mama, sakit perut bawah lepas bersalin memang common, especially kalau normal delivery, could be uterus still settling down or maybe period coming back lah, since yours dah 3 bulan lebih. But since it's happening a few days a week and you're worried about it, better check with your gynae just to be safe, at least can put your mind at ease and confirm everything's healing properly! A few of us had similar experience and turned out fine, tapi don't self-diagnose lah, better get it checked out. How's your lochia and energy level otherwise?