Had a big meal and its been 7 hours since and istill feel full. blood pressure is in pre-hypertension since. usually its optimal range. why is this?

It's OK: Remember, your blood pressure naturally rises and falls throughout the day, so the concern is when you have persistent elevations over time (days - weeks) or severe fluctuations with high readings. Always follow up with your doctor about your particular pattern. The fullness after your meal may be related to the kind of food that you ate but you may have a gastrointestinal issue. See your doc!!