I found a lump on my top jaw behind one of my teeth, should I be worried and make a dentist appointment?

It's the same colour as my gum and doesn't hurt when I touch it like it would if a canker sore. I rarely smoke,maybe once every couple of months or so if with family. I do use a vape pen somewhat regularly. I brush my teeth about 2-3 times a day which is somewhat of a new habit(I know gross) anyways. Should I make a dentist appointment or should I wait a few days and see if it goes away on its own.i just noticed it today.

Mike G2017-10-12T01:45:56Z

Yes.