I am suffering from dizziness and dr said it is head congestion. My cold is better but dizziness persists. I suffer from high blood pressure?

Dizziness vs vertigo. Depends on what you call vertigo. Is it sensation of "spinning" related to head position change or is it lightheadedness. Does it start upon standing up? The causes of dizziness are multiple. Of course your blood pressure has to be checked, by evaluation by neurologist is necessary especially if symptoms persist.