Momsh, please check with your OB asap, especially kung ang sakit ay persistent or malakas, hindi ito dapat i-brush off, okay? Ligtas lang mag-consult, para ma-rule out kung normal lang ito o kailangan ng attention. A few of us moms experienced different things sa second trimester, kaya talaga ang best person na makaka-advise is your doctor na nakikita ang buong picture. Don't worry, pero better safe than sorry talaga with pregnancy!