Dizziness indicates severe malnutrition. The current weight loss model should be corrected immediately to ensure a normal diet. Go to the hospital for examination if necessary. Losing weight is a long-term process. You need to lose a little staple food, increase low-calorie vegetables and fruits, and do proper aerobic exercise. If you persist for a long time, you will succeed. Don't take any diet pills, it won't do any good, it may only harm your health.