Well that is some interesting information but I think you'd be reaching to try to tie Kiya's problem to his possible drug use. Don't know for sure.
Now speed I do know about because once upon a time I knew a truck driver...they pop all kinds of pills that are sold over the counter to get in more driving hours. They have to keep logs and those drivers that push themselves will keep two logs. One will be legal to the letter. The other will be the true time they're on the road. If he comes back around, there are things to watch for. Sleeping a lot is just one of them.
No doubt the man has issues. If he's tied himself up to a woman with even more issues, they will self destruct.
