The common symptoms of throat cancer are cough, changes in voice, difficulty in swallowing, weight loss
, sore throat
, ear pain
etc.In laryngeal cancer there is pain
when swallowing, lump in neck or throat, hoarseness in voice etc.You do not seem to have these symptoms. Acid reflux can result in swallowing problems .Enlarged lymph nodes can be seen in viral infections, skin infection, throat infection, tooth infections etc.