When i walk, it feels like i'm on a trampoline, like there is no register to my brain that i'm moving, it doesn't feel like i'm walking, just floating?

Maybe hypoglycemia: The first thing i thought of when i read the question was hypoglycemia, or low blood sugar. Have good meals with the appropriate amount of calories. Keep some m&m's on hand in case this happens again. The chocolate and sugars will get into your blood stream quickly. If they let you carry a water bottle around school, fill it with orange juice instead. If this is not your case, see a doctor.