Lately i've been extremely tired no matter if i get 8 hours of sleep or if i get 12 i always feel exhausted all day. im 18 not pregnant what is up?

See your doctor: You should have a check up. There are a lot of possible causes for being overly fatigued from hormonal problems (such as a thyroid disorder) to metabolic problems (like diabetes) or infections (such as chronic hepatitis or hiv). In addition, lifestyle problems could be at play - poor diet or excessive stress for example. See your doc, get checked, make a plan for wellness.

Agree w/Dr. Larsh:: Dr. Larsh's answer is excellent. In the first half of 2020, another possible cause of fatigue is COVID-19, which can be one of the symptoms. Remember, not all COVID-19 patients will have a cough and fever. Consider getting tested for it in your county.