Oh dear, sakit kepala masa pregnant memang boleh buat kita rasa risau ya. At 33 weeks, I would really encourage you to mention this to your doctor or midwife as soon as you can, especially if the headache feels persistent or comes with other symptoms like swelling or blurred vision. Please do take care of yourself and don't hesitate to seek professional advice, your health and baby's wellbeing are the most important thing. Wishing you a smooth and comfortable remaining weeks of your pregnancy!