Oo normal lang yan, mama! Ang pregnancy hormones talaga gumagawa ng sobrang init sa katawan, at yung sudden hot flushes ay common din, lalo na sa second at third trimester, parang AC lang biglang off haha. Best thing is mag-hydrate ka ng marami, wear light and breathable clothes, at kung sobrang worried ka or parang may fever, okay lang i-check with your OB para peace of mind mo. You're doing great managing all these pregnancy changes, at soon makikita mo na ang beautiful reason behind all of this!