It may be possible that EMF sensitivity is a medical condition. If that happens to become accepted however, I for one would like to have some actual data on that (what EM frequencies, power, exposure time, who is most at risk, etc.) instead of a 'ban everything, btw we sell a miracle protection' style fearmongering. 'I have heard things' are anecdota, not data - I have heard five impossible things before the breakfast, doesn't necessarily mean they're true or false.