Ans: Since you have been on the medicine, hope you are also following a healthy routine with a proper diet and light walks and sleep. You can also try meditation, it helps the mind to relax and will help in regulating the BP as well. Start with 5-10 minutes and gradually increase, keep checking your BP to regulate your medicines (as per doctors' advise).

Ans: Hi Madhu, I am not a doctor but a consultant for Naturopathy & Yog Wellness techniques.
I will recommend you to not to stop the prescribed medications and go for regular check-ups. Also keep a tab on your BP and pulse rate regularly or whenever you feel uneasy.
Since I do not know your age, body weight etc., I suggest a few activities to keep a check on your weight and general health. Start with casual walks 15-20 minutes a day (at least 2 hrs after meals), practice deep breathing, moderately loud Om chanting and anulom vilom pranayams for 10-15 mins and gradually increase.
Practice Apana mudra while doing pranayams and chanting.
Also, you need a strongly regulated diet, if your doctor has not prescribed yet, I suggest you visit a dietician/ naturopath at the earliest.

Ans: It looks like your mother is going in for Cardiac compromise particularly left ventricular dysfunction
Please get a repeat echo done