Ay, 35 weeks na kayo! That heaviness and dragging feeling is super common at that stage, marami sa amin na nag-experience nun, pero para sigurado talaga na okay lang yan and hindi something else, better check with your OB na lang sa next visit or call agad if it gets worse or may other symptoms na dumarating. Basta rest as much as you can, support your belly with pillows, and don't push yourself too hard sa lakad, your body's doing heavy work na talaga! Laging better safe than sorry pag ganyan, lalo na ganitong late in pregnancy.