I am a 45 year old female, and my height is 5 feet. I have a blood pressure of 140/75 mmHg. I always feel lethargic and sleepy. Whenever I get up after a long nap, I feel dizzy. Sometimes while working, I experience a sudden unbearable headache. My period had stopped two years ago. Currently, I am taking medication for hypertension. I have been taking Tetan CT 12.5 for more than a year, and I have it once a day. Please advice.