I've been taking Propranolol for high blood pressure and tachycardia(10mg at 8am, 2pm, and 8pm) for about 18 days now, and four days ago I woke up feeling quite dizzy. Since then it seemed to get better, but now I feel lethargic, dizzy, and generally unwell. Is it my drug?
Note: I'm a 15-year-old male.