The answer to 'why do I have silverfish' is that silverfish are common household pests that thrive in damp, dark environments. They feed on carbohydrates, proteins, and starches found in things like paper, clothing, and wallpaper. Silverfish are attracted to areas with high humidity and may enter homes through cracks, crevices, or open windows and doors.
Seeing silverfish crawling around is a common sign of an infestation. Other symptoms include finding their shed exoskeletons, damage to books or papers, and small holes in fabrics. To get rid of silverfish, you can try DIY methods like sealing cracks, reducing humidity, and using traps or bait. However, for severe infestations, it's best to call a professional pest control technician who can properly identify the problem and apply the right treatments.