I was going to say what the others said, but I'll repeat it anyway
Are you tracking what you eat or just estimating?
Is it possible you're eating too little?
How much weight do you want to lose?
Are you watching your salt intake?
Exercise intensity? Leisurely pace or are you breathing hard and breaking a sweat?
My exercise is usually running or walking, but I really miss swimming. I used to go 1-2x a week at the Y before I moved and it was so great.