Hi, Welcome to Health care magic forum.
As you describe, it is common when you are minimizing the taking of carbohydrates, you will have a
low blood sugar.
If you do exercise the stored fats and protein breaks up to form the carbohydrates, and you will get the weight come down.
Avoid the calories, fats, oils, junk foods, fleshy fruits like guava, and banana.
Practice, morning walk,
yoga, gardening, and house hold works like cleaning, keeping things in order etc.
Minimize the sleeping time, practice late to bed, and early to rise. Avoid the day time sleep.
wishing for a quick and complete recovery. Thank you.