Mama, please check with your OB as soon as you can, hindi kami pwedeng sabihin kung normal yan or hindi based on text lang. Bumubukol na bumubuo during pregnancy ay dapat tingnan ng doctor para sure ka. Maraming bagay ang pwedeng mangyari sa puso during pregnancy (ligament stretching, baby position, gas pa lang), pero kailangan mo ng actual check-up para ma-rule out kung may concern. Don't worry too much, but do get it checked soon, kahit quick visit lang para peace of mind mo. Sending you lots of healthy thoughts!