I have the sensation of a lump in my throat. what could this be? the sensation started two days ago. three days ago, i went to a concert at which i sang a whole lot, which i normally don't do. could this be the source of the problem?

Without : Without an exam, it's difficult to say what exactly is causing your problem. A sore throat or a "lump in the throat" sensation that persists more than a few days could be something such as a chronic infection or gastroesophageal reflux disease. If you have a hoarse voice, it could be a vocal cord nodule or hemorrhage from overuse. Even cancer, especially if you smoke, drink or have been exposed to the hpv virus, can cause a "lump sensation" when you swallow. Because of this, it is important that you see your doctor or an otolaryngologist (ear nose and throat specialist) to find the cause of your throat problem so it can be properly and effectively treated.

Larynx inflammation: Loud voice, used repeatedly over a period of time, can produce a laryngitis. This is an inflammation of the vocal cords and can actually produce some swelling within the larynx (where the vocal cords are).

Agree with Dr. T: Give your voice some rest. Steam or water vapor inhalation may help. Have a healthy diet, exercise 30 minutes/day, drink plenty of water, have safe sex, no tobacco alcohol weed or street drugs. For nutrition: http://www.choosemyplate.gov/.