You've been sniffed out norak.
Even in the "Anything Goes" area some here will try to control you.
Welcome
Here's what the FDA has to say.
http://www.fda.gov/fdac/features/2000/600_phone.html
Here's some information from from the National Cancer Institute that find the incidence of brain tumors has remained flat from 1983 through 2003. Evidence that there hasn't been an increase in brain tumors from before mobile phone use until now. I wouldn't sweat it, sounds like stress is worse.
http://planning.cancer.gov/disease/Brain-Snapshot.pdf