Ay nako, mama, please see your OB or go to the hospital today if you can, fainting or near-fainting during pregnancy needs to be checked right away, kahit nawala na ang symptoms. Hindi kami dapat mag-guess kung ano ang dahilan nito, and your doctor needs to know, kaya go na and don't wait pa. A few of us mums have had dizzy spells in pregnancy, pero yung ganyan serious, sobrang important na sinuseryoso with your OB talaga. Praying for you, mama; please take care of yourself and baby.