Cucu:
Fitday told you that your stats for the day were:
1300 calories a day
15g of Carbs a day
15g of Fiber a day
50 to 60% fat intake.
100g of Protein a day (more or less)

According to these stats you are getting 0 carbs per day (15 grams carbs minus 15 grams fiber) and only 1300 calories. You are in starvation mode and this could be causing the dizziness, nausea, etc. That is why you are also waking up in the middle of the night hungry. You need to increase your calories a bit and carbs quite a bit. Snacks between meals would be good and a light snack (hard boiled egg, handful of nuts, nut-butter on celery, herbal tea) an hour or two before bedtime as well.