If your “throat feels really tight”, you go to a hospital immediately. Like 911 immediately. If you go into full anaphylaxis, an ambulance will have an epi pen and the ability to attempt to open an airway.
So, you think you’re allergic to something to the point that your “throat feels really tight”, and you came on here? Either you have massive reality problems or you’re a troll.
If this is a legit post, you go to a hospital. Once you’re healthy, you speak with a therapist about your internet addiction/reasoning skills.