Am I eating enough?

So I normally eat pretty healthy, pretty carb/sugar conscious because of my blood sugar problems. But I've been gaining over the last year. I typed in a normal 2 days of food and it says I'm only getting 600-900 calories. Not sure if I should try to increase that (if my metabolism has slowed down) or just reduce even more carbs. I'm 5'3" 145 pounds.