For some people, eating ice cream can make them feel a stinging sensation in their teeth. That same sharp pain can also be triggered by consuming food that is sour and citrusy. Other times, drinking hot beverages such as coffee or tea is enough to set off a sudden ache. All these signs point to tooth sensitivity.
Now, having sensitive teeth is not normal. It is not just something that you were born with and can do nothing about. Sensitivity can either strike at frequent intervals or occur sporadically. The degree of discomfort and pain varies for every individual.