Sleepless on Rockaway on 08/05/2010

We are in an apt on he first floor- we have been battling bed bugs for 3 months now but the difficult part is that we have not been able to locate where they are coming from!! we have had the exterminators come and spray 5 times so far,,,I am the only one that has bites, the other bedroom where my dad sleeps makes me wonder if he may have them in there but just isnt showing any signs of the bites (i hear this can happen) - I continue to wake up with bites and have lost days and days of sleep ove