Hi. So Last Weekened I Noticed When I Put My

Hi. So last weekened I noticed when I put my sunglasses on that I had ear pain. I touched it where the top of your ear meets your face. It was huge in size and really painful. As the days have gone by the pain had stopped but the lump was still there. As of now the lump has slowly gone down. It is still here. What do you think it is? We just relocated and didn't know if it was from stress. I haven't been sick either.