¿Te vas de vacaciones? :))
What an experience....!
Not saying a word wasn't really the hardest part, which may sound strange, but when you have serious physical pain and you are using your brain as much as we were, you start to enjoy the silence, trust me :-)
But on the other hand, it was quite hard to walk by a crying woman sitting on a bench, not being allowed to comfort her with words or a hug... That I missed. Being able to show that I do care of other human beings and not only myself...
I don't think you would explode, but it would probably be a challenge. I talk A LOT and it was a huge challenge fot me to shut up and think ;-)
and your experience reminded me of this german documentary film about Carthusian order of monks in France, who live under a vote of Silence, i think you and dhania will appreciate it, Into Great Silence,