Overactive salivary glands from a young age?

ever since i can remember I have had over-active salivary glands, i used to spit allot as a kid and i mean a mouthful not just a little bit, i don't do it any-more but almost every morning i am awakened by a mouth full of spit, and if i brush my teeth and don't put something in my mouth i will continuously produce excess saliva, do i need to see someone?