Ay, anak, kung ganyan ang feeling mo for hours na, kailangan mo talaga makita ng doctor ngayon, lalo na kung light headed ka pa. Hindi dapat palampasin yan, okay? Could be dehydration, something else, pero kailangan ng proper check-up para malaman talaga. Try to sip water slowly muna if you can, pero please don't wait, go to your clinic or ER na para ma-assess ka properly. Sending you love, alam ko mahirap yan.