Ear popped temporarily lost hearing for 3-5min mins. returned then it started to ache shortly after. what could be the causes?

Middle ear fluid: A change in middle ear pressure, fluid or eustachian tube dysfunction likely caused the symptoms. The pain is likely from your tympanic membrane and should settle down in a day. If return of symptoms, persistent pain get checked.

Etd: The most common cause would be eustachian tube dysfunction. But fluid in the ear, wax, many other causes exist. If there are no contraindications you can try an antihistsmine and see your primary or ent if you aren't better

Ear: Could be wax, Eustachian tube issues or inner ear issues Less Likely jaw related

Eustachian tube: This sounds like eustachian tube dysfunction. Plugging, popping and pain from swelling in the eustachian tube may be from inflammation, allergies, infections and on rare occasions tumors, cysts or polyps. Treatments such as nasal steroid sprays or decongestants may be helpful. Persistent symptoms need to be evaluated by an otolaryngologist.