I was very low carb a few months ago but was hit with illness and had to eat more for energy and gained about 30 pounds. I need to lose that now and am trying low carb but it's been 4 days and I am actually gaining weight. If I was stalled thats one thing but I'm worried about ballooning and if this isnt for me i'd rather jump ship than gain more than I started with!

I eat total all day:
4 small tuna cans
3.5 oz cheese
6-8 tbsp. butter in various uses
atkins sugar free syrup
lots of water
3-4 cups salad
vegetable oil
small servings of spices

Ive cut out any beverage but water but i am seriously gaining here. how much protein is too much? i feel nauseous and sluggish. thanks so much