I am taking metropolol, amlodipine and alfazozin since going through open heart surgery about 4 months, I am going through a hard time with dizziness, extremely fatigue, the urge to urinate due to an enlarged prostate and overactive bladder, I am not sleeping the night because the urge to urinate is constant, what should I do? I am am desperate... I am a 74 years old male. Thank you,