May be a virus
Being tired, and also having an itch, may be two unrelated problems, or they can be caused by one disease.
may make you tired and also give you itching, so can a more serious problem like a lymphoma
. An allergy to a medicine or some other allergy may do this as well. If you' re really tired, can't even get out of bed, and have itching, and it lasts more than a week you need to get help.