Ah, recalling the days when Rolling Stone magazine was only about the culture of San Francisco and more importantly, mostly about rock & roll, they had an ad they used to run in the classifieds in the back of almost every issue, kind of a hip version of a Burma Shave ad:
"Craps & lice are not so nice,
and nits are simply stupid.
So take the cure that knocks 'em dead
And gets you back to Cupid!
A-200!"
But back on topic, once again I would suggest contacting the Cooperative Extension in your area -- just check the phone book. Good information that is free and has been tested, so you know it will work. Cooperative Extensions are government funded sources that work with colleges and universities that do the research. You're paying for the information with your tax dollars (one of a few good uses I guess), so use it! Whether fleas or bed bugs, what have you got to lose except the bugs? They'll probably be able to tell you how you can tell what it is that is feasting on you, too -- unless it really is an alien "probe."