weigh on mind

weigh on (one's) mind

To cause someone a lot of worry, concern, or anxiety, especially for a long period of time. I know that money issues have been weighing on his mind ever since the company began issuing pay cuts. I really acted like a jerk on Friday night, and it has weighed on my mind all weekend long.
See also: mind, on, weigh
Farlex Dictionary of Idioms.

weigh on someone's mind

Fig. [for something] to be in a person's thoughts; [for something] to be bothering someone's thinking. This problem has been weighing on my mind for many days now. I hate to have things weighing on my mind. I can't sleep when I'm worried.
See also: mind, on, weigh
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • weigh on (one's) mind
  • weigh on your mind
  • spare (one's) feelings
  • spare somebody's feelings
  • sparing
  • put (one's) mind at ease
  • put (one's) mind at rest
  • put/set somebody's mind at ease/rest
  • set (one's) mind at rest
  • set (one's) mind to rest