Is there a reason that i bit my tongue today and my ear started hurting really bad as soon as it happened . just wondering?

Referred pain: Pain in mouth such as dental, sore throat radiates to the ear(s). Take tylenol (acetaminophen) or Ibuprofen for your pain as needed.

Medical doctor: It is unlikely(***) that these two events are related, but painful ear is not a good thing anyway. Please have your doctor check your painful ear. *** in rare cases, there is a condition called "referred pain" in which the pain could be felt from a source other than the site of insult.