For sure, but Jon drinks like a drunken bum. Add to it the sub-bottom of the shelf vodka and I wouldn't be too surprised if a simple cold could lay him up for a near week.I wonder what the bullshit to truth ratio on those illness tweets is.
I don't know anyone who is out of action for more than a few days when they get sick, even with a full-blown flu. After 2-3 days, they're back to 95% efficiency and some of them are older than Slingblade here.
Either he lies or he should be really worried. I'm guessing it's both, to be honest.
As you said though he lies, so who knows?