itchyness

out of nowhere this itch started. i have no idea how i got it. everything i ate is normal, my bed sheet looks pretty clean, i wash my shirts every week. so how can this happen?so irritating. everytime when i sleep on my bed, the itch always appear. its like some kind of bed bug i think. i tried washing them, but it still happens. i feel like a dog whenever i scratch the infested area.then, when i scratch it, it becomes redder and redder, almost like a big red bump on my skin..because of this stupid infection, i am missing my work pay. so much to lose, so little to gain. argghh..this itchiness better go off soon.