Recently had cardioversion. Then severe UTI. After taking mirtazapinefor for 3 months, am experiencing many side effects:I.e., deep cough, frequent need to urinate (very frequent), loss of bladder control, unusual sleep time (10-15 hrs per night when taking 15mg, difficulty sleeping when taking 1/2 pill), vision change. Concerned because all are listed as side effects of the drug. Feel reasonably sure it s related to this drug.