Textless Syndrome 

When your leg feels like its vibrating like you got a text. Or a call, when in reality you didn't.

Mostly happens when you want to talk to someone but they wont reply back, So you keep thinking your phone is going off.

Ex: Jimmy waits for his Jan to text him back saying she will go out with him. Jimmy has contracted textless syndrome

2 hours later Jimmy gets his answer after checking his phone 8k times. Looks like its just his hand tonight.

Textless Syndrome by Jak Timels May 6, 2008

Textless Leg Syndrome 

Similiar to textless syndrome, but with a better pun. You think your cell phone is going off with a text from your crush, but it is just your nerves. Common when sitting on the couch, watching TV or twiddling your thumbs. Symptoms include sweating and restlessness.

There it was again. The feeling. John slowly reached down and grabbed the phone from his pocket... he glanced down at the phone... no text. The sixth time he had done that. It seemed as if Emily would never text him back. He had heard of this. His friends once had a mild case of Textless Leg Syndrome, or TLS, but this was the full-blown case. It was teenage hunting season.

Textless Leg Syndrome by Texter 4000 January 12, 2009