General Sensitivity:
* Thin-skinned: This idiom means easily offended or upset.
* Have a tender heart: This phrase describes someone who is compassionate and easily affected by others' emotions.
* Wear your heart on your sleeve: This idiom refers to someone who openly displays their emotions.
Sensitivity to specific situations:
* Have a sixth sense: This idiom describes someone who has an intuitive understanding of situations and people.
* Be in tune with: This phrase describes someone who is aware of and responsive to the needs of others.
* Have an antenna for: This idiom refers to someone who is very aware of subtle changes or cues.
Sensitivity to criticism:
* Take things personally: This phrase describes someone who is easily hurt by criticism or negative feedback.
* Have a chip on their shoulder: This idiom refers to someone who is defensive and quick to take offense.
* Be easily ruffled: This phrase describes someone who is easily upset or agitated.
Sensitivity to physical stimuli:
* Have a low tolerance for: This phrase describes someone who is easily affected by certain stimuli, such as loud noises or bright lights.
* Be easily spooked: This idiom refers to someone who is easily frightened or startled.
The most suitable idiom will depend on the specific context and the intended meaning.