Hello, Are you overweight, do you have history of snoring, interrupted sleep due to sudden stoppage of respiration, morning headaches etc. The probable reason for this is obstructive sleep apnea. If overweight, need to focus on WEIGHT loss. We also need to optimize the dose of medicine in order to prevent this. You should have a healthy lifestyle like avoiding fatty, oily and high calorie diet. Have low salt diet and monitor blood pressure regularly thrice a day for one week then once or twice a week. Regular exercises like brisk walking, jogging according your capacity atleast 30 min a day and 5 days a week. Lots of green leafy vegetables, fruits, fish once or twice a week, avoid meat. Avoid smoking and alcohol if any. Get your lipid profile and sugars tested once.. Hope this helps you and get back if you have any doubts and with more information.