Do you have any cold or flu symptoms? Are you experiencing laryngitis? Yiu have stated you have no problems eating or drinking, but do you experience any difficulty swallowing?
How long have you had these symptoms?
Most sore throats are caused by a virus and go away on their own in about a week. Only a small percentage are bacterial infections that may require treatment with antibiotics.
Other common causes of sore throat include:
I would suggest that you go to the pharmacy and purchase some Chloraseptic. You can also gargle at least twice a day with warm salt water. Using Tylenol, aspirn, Advil or Motrin can also ease your symptoms.
If your symptoms do not resolve in the next few days, it would be important to make an appointment with your doctor or an otolaryngologist (ear, nose & throat specialist).
What other questions do you have? Please let me know so I can try to help you.
Do you ever suffer from hearburn (acid reflux)? If you look at the back of your throat is it coated with white spots or inflamed?
As you mention you do on occasion experience acid reflux, a consideration of your symptoms could be related due to irritation and inflammation of your esophagus (esophagitis), from stomach acid into your esophagus which can lead to inflammation and a sore throat.
If left untreated for long periods, acid reflux can cause:
As you have stated you have not had heartburn in the past, depending on how severe it was this could be something to consider.
My feeling is that you may simply have a viral infection which can cause a sore throat, in view of the fact you no longer have your tonsils or adenoids. A sore throat that lasts longer than a few days should really be evaluated by your doctor.
I have provided you with the most common causes of a sore throat. As you would agree, without me being able to examine your throat, I can not tell you exactly what your diagnosis is.
Lastlly, another consideration is do you suffer from seasonal allergies which cause a post-nasal drip? If so the constant dripping from the sinuses into the back of the throat can also result in an irritation that causes a sore throat.
As you can see above, three medical doctors have agreed with my answer. Dr. Nash, even teaches medicine. I have provided you with a concise explanation of what your symptoms could indicate.
If you provide a detailed account of your questions and concerns in regard to preciselt what type of help you require, it would provide me or one of the other experts direction on how to provide you with the best possible assistance.