Please explain what it means when you have severely high blood pressure and high white blood?

Separate issues. It means (as you know) that your BP is elevated. The high white count usually suggests an infection unless it is very severely elevated (>20,000) which can indicate a hematologic issue. The 2 problems are not usually related unless you happen to have an infection in your kidney or brain. In either case, there would be lots of symptoms pointing in those directions.