Hindi ka nag-iisa, mama! A few of us had the same experience sa third trimester, ang aming OB said it's normal dahil sa weight gain, blood pressure changes, at kung paano na-position ng baby ang organs mo, so it hits differently than first trimester dizziness. Pero since you're still feeling it pretty intensely, I'd really suggest checking in with your doctor to make sure everything's okay, lalo na kung may ibang symptoms like spotting or unusual headaches, better safe than sorry, especially at 7 months na.