Too much water?

So I drank two and a half 16.9 oz bottles of water in less than an hour because I realized that I hadn't hardly had any water today for myself or my little one, and I started feeling dizzy almost immediately after I drank it. I'd heard about water intoxication and that it can cause dizziness as well as a bunch of other serious problems. I'm feeling more faint and just overall not right at this point and was wondering if it could go away on it's own or if I should seek medical care since not only am I involved but my baby as well.