мясти́сь мястись

Meanings

1. to be troubled, to be agitated, to be anxious, to fret
2. to stir, to seethe, to surge
3. to toss and turn, to writhe

Examples

• Ее сердце мясти́лось от неизвестности.
  Her heart was troubled by uncertainty.
• Волны мясти́лись под натиском бури.
  The waves surged under the onslaught of the storm.
• Он мясти́лся в постели, не находя сна.
  He tossed and turned in bed, unable to find sleep.