I have just been given some samples of effexor xr from my Dr. after reading some comments I am concerned about the weight gain causing a problem along with some people saying that they had no energy. I am already overweight & sometimes I thinks that may contribute to how I am feeling along with other things. As far as energy I currently have alomost none & I can't afford to have any less since I have 2 young kids. I am hoping this medication will help but I am just nervous. If anyone has suggestions that would be great.