Uy mama, at 36 weeks any pain sa pusod talaga dapat ikonsulta mo agad sa OB mo, hindi worth taking chances pag ganyan! Could be something minor or just Braxton-Hicks, pero kailangan talaga ng doctor to check para sa peace of mind mo at baby mo.
A few of us moms had similar worries before delivery, at ang OB agad lang nag-check and nag-reassure, super important yan especially na malapit na due date mo! Please don't wait if it's getting worse, go to your hospital or clinic na, love. Praying it's nothing serious, pero kailangan talaga ng professional check.