Your worry about having a different dissorder is most likely just your known disorders doing their thing.

perhaps mentioning your concerns to your health care professionals will ease your mind when they explain why you do not have schizophrenia.

It sounds as if you have a very active mind that is constantly jumping from one thought to another. When you are in a high state of anxiety that will happen because your mind keeps running through lots of different thoughts. If it is causing you a problem then physical exercise can help - anything from walking to doing a more formal type of exercise as you have something physical to think about so your mind can get a bit of a rest.

Getting some help with the anxiety would probably help so you could get some books on the subject or see a professional who uses cognitive behaviour therapy or hypnosis or something similar.

Although anxiety can run in families it's a learned behaviour which means that you can also learn to change it.

At your age, rest is the best medicine for you. You sound normal to me but make sure you get plenty of exercise and rest, and eat nutritous food. It is important for you to believe in yourself, know that you control your own thoughts. Never do drugs or alcohol because this will distort any negative thoughts you have about yourself. Don't be afraid to face your fears, and learn to speak up for yourself. Good luck.