心里

have a pain in the chest

feel a tightness in the chest

Don't take too much to heart what I said.

My mind was full of ideas.

He always has the interests of the people at heart.

He was already rattled.

Do you have me at heart?

get worries off one's chest

keep/bear sth in mind

have a strange feeling at the back of one's mind

know very well in one's heart

have ulterior motives/designs; have a guilty conscience

be clear in one's mind

have a clear/an easy conscience

turn things over in one's mind

feel puzzled

be clear in one's mind; know sth in one's heart

one's heart miss a beat

one's mind is in a whirl

feel rather diffident; lose one's nerve

feel scared; be panic-stricken

feel uneasy

feel bad (about)

be mutinous in one's heart