I have gained about 35 lbs since being put on Cymbalta, but it causes DECREASED appetite. I asked a pharmascist and there is only a 1& percentage on this. I know about Abilify that Im on too. I do not want to know all the side effects of Cymbalta. I would like to no if anyone, anyone has experienced this problem. I am also on a slimfast diet for almost 1 month and haven't lost 1 lb. I can not excercise right due to a bad back and sciatica. Please can someone who has experianced this only with Cymbalta answer this question. Thank you.