Hello and welcome,
Thanks for your query.
From your description, this could most probably either be the development of an infection of injury
of the food pipe (esophagus
If this feeling is similar to an itchy feeling in the throat, you should watch out for a fever
or production of cough
of any kind which are signs of an upper tract infection. If you develop any new symptoms it would be best to visit a doctor for proper treatment of the infection.
The second possibility could be the one you explained. Injury of the inner lining of your esophagus. In this case some patients even complain of blood stained saliva, have you experienced the same? This could be because of the injury inside your food pipe. If it is an injury, it shall subside with time (not too long). I suggest you wait it out and watch for the development of new symptoms, which could help find out if there is anything that requires medical attention.
As of now, I think you will be fine. Wishing you luck. Do visit a doctor on appearance of new symptoms.
I hope I have succeeded in answering your questions, you could write back to us anytime for further clarifications.