Getting Dizzy After Eating - Need Help!

Hi, I keep getting dizzy right after eating— like blurred vision, vertigo, muscle aches, etc. especially after dinner. My diet is mainly like: Breakfast: 1/2 cup oatmeal w/ cinnamon, blueberries, and small plate of mixed fruit (which is banana, strawberries, oranges, cantaloupe or pineapple) and a small plate of spinach Lunch: lettuce with 1/4 of chicken breast and 4 carrots, potato or white rice, plate of mixed fruit Dinner: 1/4 cup green beans, table spoon peas, 1/4 cup carrots and 1/4 chicken with some spinach I figure I need to cut on the carbs, but does anyone know what this could be? I am open to suggestions. Also I keep getting hungry even after I ate so much, and when I’m hungry I simultaneously feel so nauseated like I’m about to throw up. No idea why. Sometimes it goes away for a few days but comes back. Thank you!