I had a CBC 5months ago and it all was normal, I'm getting another one tomorrow bc I've had slight fever for 3days with no other symptoms. Leukemia??

Unlikely. You are more likely to have a viral infection than leukemia. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex, if you have sex. Get HPV vaccine.