Whenever I get severely anxious, there's a small muscle beneath my throat that twitches consistently for at least a few days, until it goes away on its own. Before I went to my doctor about it, though ...

This post was written by Chelsea Dale, M.S. Taylor’s mother noticed that her 8-year-old child was constantly sniffing but did not have a cold or allergies and was excessively blinking, head nodding, ...