I m 60yr male having BP 80/60 from last 15 years without any problem, but if my BP increases from 80/60 I feel very uncomfortable. My all tests normal.?

Chicken or the egg. Is it the chicken or the egg. Are you feeling uncomfortable because the BP is going up or is your BP going up because you are uncomfortable for other reasons. Please revisit with your doctor.
Needs evaluation. Symptomatic BP changea, especially when its above your standard normal should be evaluated more in depth and possibly even referred to a specialist.