Oo normal yan, mama! Especially pag 33 weeks ka na, sobrang heavy ng baby and the extra fluids kaya ang circulation mo ay medyo compromised talaga, lalo na kung matagal kang nakaupo or nakatulog sa isang position. A few of us sa mommy group namin ay nag-complain ng ganyan, kaya ginagawa namin is kumuha kami every 30 mins or so to stretch and move around, tumutulong talaga! But if it's happening pa rin kahit gumagalaw ka na or may swelling / pain na unusual, definitely mention it sa OB mo next check-up para malaman kung okay lang or may circulation issue na kailangan i-monitor.