Tb test, but where can i get proof of my mmr, polio, etc.?

Not sure: You should have an immunization record validating your claims for the above vaccinations. I assume you don't have it, if you are asking. Certain states have a registry that records vaccinations administered in that state, so contacting your primary care provider or a local health department might be helpful. If there is no way to obtain this information as described, i'd advise getting those shots.

Several places: Start by talking to your mom, she might know something about it. Your pediatrician or family doctor might have these records. You can try your school. Finally, some states have registries. But don't worry, if you cannot find them, you will have some blood tests done, and accordingly you get your proof or you get the vaccines again.