I can't eat or sleep

What are normal body substances that recognize abnormal or unwanted substances? You sat down next to the girl you like who is also your friend and the person on the other side asked if you had a crush on her and you said no and you think she heard is that bad? What does it mean if you start feeling sick after not having meat for about 3 days? What are some tips to prepare for a performance review? Why are minerals needed? What is the study of diagnosis and treatment of foot disorders called? Do airplanes give off radiation? Why is water important to the body? What is healthy sex frequency in a week for 40 year old? How do you Stop looking at of the corner of your eye? Can human chew and swallow at the same time? How do you wake up in the morning with a smile? What is transphenoidal hypophysectomy? What does it mean when a guy is quiet and polite around you but is loud and swears around everyone else? What do you feel when you are hyperacidity? What does q8hr mean? What are the benefits of abstinence? How many kidneys do you have you the human body? What antioxidants scavenge or quench what radicals? Why does your body make a lot of urine one day and very little the next?