EMF Safety Network has a harrowing list of user-submitted SmartMeter stories. Steel yourself and take a look. A sample:
Last week our power company in NE Arizona put a new digital meter on our house. The meter was supposed to remain in a silent mode and not transmit unless someone sent a signal to it from the highway to activate it and get the reading.
Over the next 6 hours I gradually got very sick from the meter. The symptoms were a vise grip headache, nervousness, horrible brain fog (after 3 days I was unable to complete a sentence), total insomnia, stomach rolling and nausea.  The meter seemed to run in on the current and I began to have reactions to my electric stove and other electrical appliances that I had not been bothered by before.
After a couple of plea’s from my husband, the power company made a decision to return our meter to analog. I had immediate relief in some symptoms, but others took several hours to go away. Due to a weekend and Monday holiday, it took a week to get the meter removed. I was so sick by then I was worried it would leave me highly sensitive to emf’s. After 24 hours I seemed to be ok, however. These meters are not safe! Anonymous in Arizona