Uy, momshie, that back pain na umuusad at sumasakit, lalo na at 35 weeks ka na, kailangan talaga i-check mo ng doctor ASAP, okay? Hindi kami makakasiguro kung ito na ang labor signs or something else, kaya please don't wait, mag-call ka ng OB mo or pumunta ka ng hospital para ma-assess properly. A few of us moms nag-experience ng ganitong sakit, pero bawat pregnancy talaga ay different, at sa stage mo na, importante talang ma-rule out agad ng professional kung may issue or if this is how your body's preparing na. Take care, momshie!