Also doctors typically start out on the lowest dose and increase it based on feedback. If you don't have AD/HD even a small dose of adderall should be noticable. If you do have AD/HD it is possible that the dose is to small. Your doctor is really depending on you for feedback, so give it. You might also want to ask your doc why I am telling you this instead of him.
you should be able to tell . read a book or words and you can tell the difference right away.