Hi i have noted your concern
Your blood pressure is on the lower side, needs proper evaluation, kindly get one 2D echo done and physically consult with cardiologist and take the expert advise.
Next Steps
Do not worry, sometimes when bp is checked in resting state it will also show on the lower side but if it is always on lower side, better to get checked physically by a doctor, because sometimes digital apparatus doesnt show accurate results.
Health Tips
Drink plenty of water
Add 5gm salt in your daily diet if it is on lower side, after getting checked physically by a doctor.