Diabetes, Type 2
"The general side effects of dehydration and urination aside, those were not my problem.  Fatigue was the issue.  I was on 100mg to start and noticed after six weeks a decrease in mental acuity -- missing things I might not otherwise, more forgetful.  My dose was increased to 300mg and all I wanted to do was sleep.  Went back down to 100mg, but the exhaustion continues.  Time to try something else."