My ear has a painful throb what could it be ?

The base of my ear is throbbing and it is an intense pain , just for a few seconds at a time tho .
My ears are clean of wax and any other foreign body from what i can tell , the pain is very sharp and causes me to wince .
It goes away when i press or rub the ear , its too late for a Dr now i have used olive oil to see if any wax or stuff comes out nowt there .
I haven’t banged it , this pain has been coming and going for a while tho . I know i should have went to the Dr ages ago about it , but i didn’t think much about i then.