texting addiction, mental illness?

"Experts" are claiming that texting addiction is actually a mental illness. While this seems a little extreme, I can somewhat understand. Not that I'm addicted, but there truly are people who would go crazy without their cellphone. Do any of these symptoms apply to you? 

• Excessive use (neglect day to day activities)
• Withdrawal ( feeling depressed when not accessible)
• Tolerance (over texting)
• Negative repercussion ( social isolation)

Couldn't even imagine a world without the technology we have today.

Read more here.