The answer to 'why is my pest bites' is that pest bites are typically caused by insects or other pests that feed on human blood, such as mosquitoes, fleas, bed bugs, or spiders. The bites can cause itchy, red bumps or welts on the skin, and in some cases, may lead to an allergic reaction or skin infection.
Common symptoms of pest bites include itchiness, redness, swelling, and in some cases, pain or a burning sensation. The severity of the symptoms can vary depending on the type of pest, the individual's sensitivity, and the number of bites. In most cases, pest bites are harmless and can be treated with over-the-counter creams or medications to relieve the itching and swelling.