What Causes Sudden Headache, Nausea And Increased Blood Pressure?

Driving t and a sudden headeach, nausea, and some dizzines. Made it through 15 minutes of shopping and knew I had to ge home. Barely made it 15 miles to hoem. Tooka baby aspirin and layed dow, Felt like I wanted to go to sleep, but makes me nauseas to close my eyes. Burping.
20 Minutes later and have same symptoms. Feel like I want to pass out. Blood pressure 1332 over 88