Headaches are common side effect of using birth control pills.
Many women may experience headaches when they start taking birth control pills, and pills with lower doses of estrogen or progestin-only birth control pills, are prescribed instead.
If the headaches continue, taking off the BP is suggested.
Fatigue, lightheadedness, even, stomach upset, bloating, or nausea could be a side effect of BP, but, fatigue and lightheadness are symptoms of high blood pressure, too.
Ringing in the ear is caused when the blood pressure rises.
You should pay more attention to a control of your blood pressure, and talk with your GYN about other form of contraception, cause women with hypertension aren't candidate for BC.
Excessive thirst with frequent urination, cramping abdominal pain after a meal, fatigue, dizziness, tingling sensations, especially in the extremities could be symptoms of diabetes.