hi , welcome to heath care site....
Most causes of dizziness
are not serious and either quickly get better on their own or are easily treated..
some of the few diseases you have to ruled out are migraine
, low blood pressure or low blood oxygen, ear infections, dehydration
, benign paroxysmal positional vertigo
so do consult your nearby doctor first to get you checked up properly....
also drink adequate quantity of water, eat healthy diet & take atleast 6 to 7 hours of good sleep..