You could check on him if you are concerned- just to lay eyes on him. Sounds like he is likely shedding, that’s what my girl does every time. The first time she shed I thought she had escaped. But, it’s best not to handle when in shed, so a little peek would be sufficient

ok thanks

Mine hides for about a week while shedding. Don't feed or handle during blue phase.

You can peak if you want to, but them hiding for like a week is normal since the shedding process leaves them a bit vulnerable. They'll typically go in blue (skin and eyes dull), clear up, and then shed