Metoprolol
"Metoprolol 75mg/daily. Dizzy & off balance, nausea, weight gain, joint pain, extreme fatigue with breathlessness, hair loss.  I accidently cut down on taking it when I had the flu.  Lost 10 lbs due to hardly eating for 1 1/2 weeks.  Noticed that I was thinking more clearly, had no nausea, joint pain was pretty much gone and I had more energy. Checked bp and it was still in the normal range.  Am weaning myself off and am down to 25mg daily as I continue working to diet.  Easier to lose weight now, too.  I can breathe much more normally now and have better balance."