As soon as there is a high-bandwidth transmitter very close to me - headache comes in seconds.
I've done blind tests holding non-remitting iPad or the one streaming 1080p movies at high bitrate and easily able to tell when there is no radiation.
Many people have been studied who present with these symptoms. They are consistently unable to detect the presence of fields.
PS I can already see fault with the experiment in which the streaming devices are likely to be warmer.
Once I set at the table next to my friend's open laptop and started feeling those head 'cramps' immediately as he started downloading a large ISO. Put on pause - the feeling subsides in a minute.
Doesn't feel like a pain, def. not sharp pain, but a significant discomfort, sort of a little brain earthquake. I don't know why EMF sensitivity is not properly studied, as it's def. not a myth!
Also worth noting that an iPad playing high bitrate video will be warmer than one which isn't; I could probably tell the difference too.
It has been widely studied and no proof of such an ability exists. Would love to see some proof of this from you
It began with a Sony Ericsson, but happened across a couple of different phone brands over the years. Still happens extremely occasionally now (maybe twice a year) with my iPhone.
I'd be interested to know if the signal strength is suddenly spiked when a call is connected.