Walt is always thinking ahead and very smart, but why...

Doing a rewatch, getting toward the end. Never thought of this before. Why would he not think to at least look into Jesse being with hank in season 5. He can't be found anywhere. He knows hank was questioning him, off the books even. Is he just that worked up? He never thinks to have hank checked out to see if he has Jesse? Walt was always a step ahead of everyone. He has to have known hank was watching him. Is there any context anywhere? They check apd, Crack houses, friends houses etc. No dea or even just hank mentioned. Idk. Not a big deal I guess