Hi, Welcome to HCM,
Yes, you should immediately stop the medicine today. First you go and see the Doctor. Doctor should do your ECG, ECHO and necessary investigation to rule out any heart disease
( IHD, CVD)
This medicine can cause all those side effects, specially when you are taking 8mg once in a day. it is better you take 4mg, two times in a day with 12 hours interval. Any type of dehydration
, like Diarrhoea
, vomiting, alcohol, etc can also cause hypotension
. In those patients who have any underlying heart disease, sudden low BP can cause major problem. irritating dry cough
is very common side effects.
In my opinion you should be switchen on to another Medicine to control your Blood pressure.