Feeling dizzy/un-real... At all times?

you're at an age where a part of your brain (the pre-frontal cortex) is entering it's final stage of development. confusion, angst, strange sensations/thoughts, the whole gambit of being a teenager is about to happen to you. it's normal, it's expected, it's the same thing all your friends are going through, although not everyone will experience it the same. keep your diet in check, get plenty of exercise/activity, stay off the booze and drugs (there is a reason they tell you not to do them in the first place), and enjoy being a teenager while you can! do some research on brain development, specifically the pre-frontal cortex region (think of it as your brain's computer processor), and try not to panic. you're normal.