If your parents routinely said things that hurt you or made you feel humiliated and then said "you are over sensitive" or "you are over reacting" when you told them you were upset, then YES you were suffering emotional abuse from them. Deliberately doing something that a person has told you upsets them is bullying, in fact, for me, the phrase "you are over reacting" is a big alarm bell as nearly always the phrase means "you should not be challenging my behaviour, your feelings don't count and mine do, I am entitled to humiliate and upset you".
Do look up the "out of the fog" website as they talk a lot about being emotionally abused (FOG stands for "fear, obligation, guilt" in this context).
You may well find that this "teasing" was in fact a bullying control mechanism. It is ok to be upset and ask someone to stop their behaviour, if they ignore you and carry on doing the things that upset you, then that is deliberate abuse and disregard for your feelings.