Definition: Mental distress or agitation resulting from concern usually for something impending or anticipated.
The movement is a phonological variation which is also conventionally accepted.
Gloss: IX1 CL:lie-down ALL-NIGHT FULL-WAKE WORRY++ THINK-BOTHER++ fs-MARK.
English equivalent: She lays awake all night worrying about her mark.
Verb agreement: "all night' with a slightly long sign (AWAKE) and repetition for WORRY++ and THINK-BOTHER++.