Mama, ang headaches at hindi feeling well during pregnancy ay common, pero since you're experiencing this often, kailangan mo talaga mag-check with your OB para sure lahat okay lang sa iyo at sa baby. Hindi ko pwedeng sabihin kung ano ang dahilan without a proper check-up, pero ang doc ang best person to assess talaga. A few of us mums nag-share na marami kaming headaches during that stage, pero important talaga na ma-monitor mo with your doctor especially kung paulit-ulit na. Take care of yourself, okay? Get that appointment scheduled soon.