One of my close friends, on occasion, experiences twitches throughout certain parts of the day or at particular places (ex. church, some periods at school, etc), and her neck muscles will stiffen. What does she probably have, and is it serious?
it's nothing. it's just randome muscle spasms. everyone gets it.
Not to worry to much, it should be just some muscle spasms. however, if her condition worsens, do ask her to go for some physiotherapy 