welcome to HCM,
It seems that you have got absolute constipation
But keep one thing in mind that constipation has nothing to has with constipation.
To relieve constipation take plenty of water, take plenty of green vegges and food containing more fibers.
Take papita, banana, cullingers fruits.
Avoid sedentary life and do regular exercise mainly abdominal recti exercise.
Initially you may take laxative like liquid paraffin
one table spoonful at night.
Problem of high blood pressure
is common at this age, for that go for blood sugar, S.cholesterol and lipid profile
, ECG and afterwards go for treatment accordingly.
Ok and bye.