Reason 5: Infection
Another really common reason why your throat is tight is the fact that you have an infection in your throat. The most common ones, like strep throat or tonsillitis, can definitely cause such a feeling, along with soreness.
Other symptoms to look out for are: swollen or red tonsils and swollen glands; chills and fever; bad breath; pain when swallowing; pain in your ear; headaches; laryngitis (losing your voice); or vomiting and nausea (which is more common in children). If you are experiencing any combination of these, you should go see your general practitioner as soon as possible to get the relief you need.