Help!

I am two years out from surgery my highest weight was 265 and my lowest is 159. I have gain up to 185 over the last year. I am having a lot of trouble eating meats especially Beef also eggs makes me feel like I am dying now when I eat them. I have been eating a lot of carbs because it doesn't make me sick.  Any suggestions. Protein shake are now making me nauseous I think because I have drank them so much. Has anyone had this problem. Also I stay HUNGRY all the time. I have even started drink Soft drink just to get some sugar in me that I think I am lacking