Words stick in (one's) throat informal
If words stick in your throat, you are too emotional that you can't say something.
You didn't know how grateful I was. Back then, words just stuck in my throat.
Words stuck in her throat when she agreed to his proposal.
1. To be covered by a layer of fog or drops of water so one could hardly see.
2. To become overly sensitive and easily cry over something.
To cause an emotional reaction for someone
State something in a very strong, clear and effective way
Congratulation on your speech! You really drive your message home!