Ay, I get the worry! At 5 months buntis, ang belly mo talaga ay lumalaki ng mabilis, so sometimes you feel weird lumps or hard spots doon, happened din sa amin, like the ligaments stretching or even baby movement na parang bumubuo ng weird shapes, hehe. Since minsan masakit siya at matigas, better check with your OB just to be sure, hindi naman bad thing, pero mas makakatulog ka ng mahimbing once they confirm everything's normal! A few of us din dito dini-dismiss lang namin kaya napakabagal ma-ease off ang worry, kaya go na lang talaga sa check-up para peace of mind mo.