well my husband for these last 4 months is getting dizzy and he has also alot of headaches and he noticed that his right arm is trmbling ,it could be a njoint or something....we went to a local doctor and he prescribed BETASERC for two weeks and 2 each day 1-0-1........he is getting worried ,dpoctor said his blood pressure is a bit low but not to let him feel dizzy....pls help or advise on what to do.he is still 25 years old...