First off, all this is unfalsifiable, making it a bad argument. But let's imagine anyway. I want to break this into a few parts:

As far as physical dysphoria, yeah the physical sensation of having a couple weights on my chest would probably be pretty distracting. For how long that would last, who knows?

Socially, I wouldn't want to be hit on by guys, but I can't see myself running around insisting that everyone call me a man.

Of course all of this is not a direct comparison, as this situation is about actually being one thing instead of another, as opposed to claiming that you are and know what it's like to be a thing you never physically were.