Mama, please see your doctor as soon as possible, blurry vision + dizziness + headache together during pregnancy need to be checked out right away, okay? 'Di ito dapat i-ignore kahit parang normal lang sa unang tingin. A few of us mums have experienced different things at 21 weeks, pero yung combination na yan talaga ay kailangan ng professional check, baka need mo i-adjust ang vitamins mo ulit or may ibang reason. Don't worry, ang doctors natin used to this, at madalas naman okay lang everything. But please go, better safe para sa baby at sa'yo! Thinking of you!