Well, i for one often have a similar reaction with anything that pushes the "overwhelm" button for me- and sometimes that's included reading posts on here, dealing with unsolvable family problems, etc. I get an overwhelming urge to go to sleep, and it's not the happy, cozy feeling of "sitting on a soft couch in a warm room after shoveling snow for three hours" sleepy; it's the "had the flu for a week, way too little energy for anything" type. So, yes, you make sense to me...
Give sorrow words: the grief that does not speak
Whispers the o'er-fraught heart and bids it break.
-William Shakespeare, Macbeth, Act IV, Sc. III