anyone know how many calories I should be eating post op?
That is a lot of calories for 2 weeks out. Just because you were told to take in that many does not mean you have to. Are those calories coming from protein shakes or from carbs like cereals? In the beginning I was never given a calories goal, just protein goal. I did track calories and was about 500 a day for the first three months.
I ate no bread, rice, pasta, potatoes, or cereals. I was strictly protein for the first three months with some applesauce, sugar free puddings and jello. Most of my meals were protein shakes with a small amount of tuna, beef or chicken.
At three months, I added salads and well cooked vegetables like in vegetable soups. I had my first piece of toast at six months and could only eat 1/2 slice of it. Most plans are much more progressive now and some plans were much different then. I don't think anyone is setting you up for failure. In the end it is up to you to decide what works for you.
I did not add any other starches until I was several years into maintenance. Now they are a rare treat.
I'm with White Dove - I think your shakes must be too high in calories. The easiest, most convenient, and most delicious shake I have found is Premier Protein. One 11 oz shake is 160 calories, with 30 g of protein. Two of those would be 320 calories, and then if you only have cottage cheese/yogurt/milk (try unsweetened almond milk which is lower carb and lower calories than 1% milk) you will diminish your calories greatly. Some of the protein shakes out there are super high in calories and carbs. And, I have found vast differences even in the same brand. The Isopure Zero Carb unflavored is significantly lower in calories and carbs than the strawberry! Labels, labels, labels...it's all so confusing :)