Oo, normal yan lalo na pag stressed or nagbago ang diet mo, pero kung tumatagal ng ilang days na at sobrang sakit talaga, better to check with your OB or doctor na lang para ma-rule out if may iba pang nangyayari. A few of us mums experienced this din especially after pregnancy, at ang ginawa namin is drink more water, eat slowly, at avoid gas-producing foods muna like repolyo or beans, then it improved na.