FWIW: To me, it sounded like an atypical cold or a typical flu. I've been "wiped out" by colds before, though rarely, and I'm always "wiped out" by flus, though

FWIW: To me, it sounded like an atypical cold or a typical flu. I've been "wiped out" by colds before, though rarely, and I'm always "wiped out" by flus, though I catch them a lot less often than once a year.