Three days ago, i woke up with my body shaking. i thought it would've went away by now but it hasn't. what could this be? i'm freaking myself out.

Be more specific: First, be calm. The symptom of "shaking" is very non-specific. And you are likely perfectly healthy. That being said, let me ask you a fee questions to try to narrow things down. Where you shivering? Where you cold? Do you have fever or pain? Any other associated symptoms? Have you ever had a seizure? Has the symptom of shaking come and gone over the last three days or has it been constant?

Body shaking: Any other symptoms like fever, dizziness, hunger, loss of bowel/bladder control? Do u take any meds or supplements or use any party drugs? Low blood sugar might cause shaking but should resolve with eating. New onset of type 1 diabetes might be possible. Best u see fp soon for thorough work-up for diabetes, thyroid ds, infection, urinary tract infection involving kidneys, toxic shock, etc.