Ok I'm gonna give KC the benefit of the doubt,
His condition is strange, I'm gonna give him the benefit as the turnaround fro Assen to Laguna is very short.
Flying from europe to California in the space of a few days is not ideal recovery conditions for someone who seems to have a genuine sickness (to me anyway )

Plus its very common for athlete's to suffer from gastro intestinal problems. Its down to the speed of the metabolism.
I know from experience , if you dont have enough calories, the stomach tries to find something to burn, which if there's nothing to burn, the stomach acid burns the lining of the stomach causing ulscers over time.

In the short term it can cause excessive stomach pain and vomiting and diarrohea.
Anyone remember D Beckham puking on the pitch during the world cup and Paula Radcliffe dropping out of the olympics.
Anxiety of pressure can also trigger these symptons (which could be causing KC's problems)

Its very normal for rugby, soccer players to vomit in the changing rooms before a game, Some players wont be able to focus unless they puke before they play, it steadies the nerves.

Maybe KC is turning into a human and his brain has clicked in that he is doing something dangerous,
Maybe he is having doubts and realises that the way he wrestles the Duke around the track is crazy.

Which it is, I think we all agree the way he rides that duke is crazy, he just shows no fear and rides on the limit every lap and doesn't mind it bucking and shaking, he just gets on it with it.
Even on the honda he didn't give a shit and crashed spectacularly every week just got up and walked away.

Now that he has a wife and she probably nags him about it and talks about kids etc and maybe someone has hit the on switch in his head and he's distracted.

Remember when Vale was with Arianna for 2 years, 06, 07 the 2 worst years of his career. People questioned Valess hunger and passion,
He was too busy looking at houses and spending time partying with her
it cause problems between Vale and Uccio and basically took his mind away from the job

As Mickey said to Rocky "woman weaken knee's"

Chappie46