Three Days Ago I Was In My Car Listening To

Three days ago I was in my car listening to my headphones extra loud, as my car has no speakers. I noticed a slight throbbing in my ears and took them off. Because I was driving and the traffic was so loud, I didn't realize just how loud the music was in my ears. Since then my ears have had constant pressure but no pain or loss of hearing. Should I be concerned about permanent damage?