Blood pressure 140/90 is mild stage 1 hypertention. Your Blood pressure is 140/100 which in inthe range almost stage 1. As you got problem with heart valves I think you should ask your doctor for medication. Usually a mild diuretic
bendoflurazide 2.5 mgm daily will be adequate. Along with it you should stop smoking
, reduce weight and take low salt and avoid ghee butter etc.