Aww, mama, yun na talaga ang worry natin pag buntis, diba? Pero since you're 4 months na and may ganitong sakit, please go see your OB agad-agad para ma-check nang tama, hindi dapat i-take for granted ang tummy pain kahit gaano kaliit. A few of us mums experienced different tummy sensations during pregnancy, pero lagi naming sinabi sa doctor agad, lalo na pag may sakit talaga. Your doctor lang talaga ang makaka-assess kung normal lang yan or something else, kaya don't delay ha! Feel better soon, and sending you a hug!