Was told had fatty liver after gallbladder op and now pain in sides and back and chest pain. is my liver failing?

Post op pain: This is likely post operative pain and not pain from your fatty liver. I assume your operation was done laparoscopically, the gas used to inflate your belly can cause discomfort and be slowly reabsorbed and it could also be post surgical discomfort that can last for a couple of weeks post operatively. Failing livers don't generally hurt, liver inflammation usually does.

Depends!: When was your surgery. If it happened in the last 6 weeks, and you are having this type of pain now, you need to call your surgeon or go to the ER. If not, there is some other cause of your symptoms. A failing liver does not usually present with pain. But if you have fatty liver, it won't fail for years. The problem can be reversed with weight loss and proper diet, in many cases. No alcohol!