Why are you suddenly allergic to everything?

It is highly unlikely that someone can suddenly become allergic to everything. People can develop new allergies over time, but sudden widespread allergies to the vast majority of substances is not a medically understood concept. It is important to consult a trusted healthcare professional about specific sensitivities if you have concerns. Self-diagnosis based on perceived allergy symptoms can be inaccurate or hazardous in certain cases. Always rely on proper medical advice for the best course of action regarding allergens and health issues.