I'm a male of twenty two years old and I have a tooth ache. I brush my teeth daily but at no regular intervals. It seldom pains me and no bad smell or any other issue cannot be traced. I will be happy if you can tell me why I'm facing such a problem and how to get rid of it. The previous time when I faced such a problem I visited a doctor and he advised me to change my tooth paste bud it seems of no helpful. Awaiting your reply, thank you.