I bashed my skull on the freezer door a few years ago. i have a dent in my skull. would this cause any problems later on?

Go see your doctor: If your skull has a dent, you should get it checked by your doctor. But it takes a severe injury to create a dent in the skull and you will have a big bruise or hematoma on top of the skin. If you do not have any swelling on scalp, it is unlikely you have dented the skull. But if you want to be sure, you should get a check up by your doctor as there is risk of bleeding(hematoma on the brain.