Hello and welcome to HCM, Sir, i was just going through the mails sent by HCM to answer peoples quries, it just happened that i went through your question and found it very important query of concern. Just before answering your question, with your kind permission, i would like to offer few explanations - Feeling of foreign body sensation, irritation of throat, as you explained in your query, might me the intial syptoms of any throat infection or allergy. If we consider throat infection, particularly pharyngitis is very common. This may be again viral or bacterial. In either case of infection, a mild throat inflammation is usual, now that is the cause of concern. If there is inflammation particularly with the epiglottis part that may be swollen and sometimes may alaso lead to difficulty in breathing and should be treated immediately. In your case what is actually happening to you will be clearly demonstarble only by Laryngoscopy which is done by an ENT specialist. Ok..let me stop with this explanations and allow me directly go to your query of concern i.e., what could this be ? My answer would be - Epiglottis It is just behind your tongue and present normally but may be of concern when got swollen. Nothing to worry much about it as you have not mentioned any difficulty in breathing. In summary - What you are concerned about is might be epiglottis , So, in my advice, please - (1) Get checked by an ENT specialists and get a Laryngoscopy done (2) Start witha a penicillin group of antibiotics (if you are not sensitive) along with a serratiopepidase Along with it, steam inhalation will be very soothing and will help you an fast recovery. I am not writting a detail prescription as not allowed by HCM. With this, i will wind up and i wish you a very very early recovery and a very very healthy life ahead. Lastly, just do not worry too much, everything will be fine soon. Thanks and Regards drdigantakumardas