If i had tumor in cerebellum, would i have more symptoms other than sense of being off balance? i have a good balance. just feel off balance.

I do not understand: From what you a re saying, you have a problem with balance. If it is making it difficult for you to function, get your head checked with an x-ray(ct or mri). There is no other definite answers unless you want to wait for sometime which will either make the symptoms worse(if you had a real problem) or you will get well in which case you did not have the problem. So you can choose either of the opti.