That was before he started approaching weight cuts more professionally and hired actual professionals to monitor his weight. Since that time, he has made weight 3 times in a row and looked phenomenal in his last fight showcasing an iron chin and tremendous cardio, which is proof enough that the cut is not draining for him at all. The only adverse symptoms he actually mentioned in his post UFC229 interview were insomnia one day before the fight and the desire to puke on an empty stomach, which have nothing to do with "seizures".
You're a mongoloid who knows absolutely nothing and regurgitates whatever baseless diarrhea drips down your mouth from the same breed of retarded haters as yourself.
Conor has everything to do with it, by the way, since you're his obvious nutsack gobbler judging from your post history. Khabib will never move up, because he's the champ at LW. If someone wishes to fight him from a weightclass above, they should move down and challenge him, the undefeated champ owes them nothing.