My albino rainbow shark is acting strange?

hey, i have an albino rainbow shark in a 60 gall on tank with a severum, cichlids, an ID shark and 2 angels... none of the of the other fish have been picking on him or anything because i have been watching, and he seems to still be eating fine but hes sitting outside the log he usually hides in laying against the wall of the tank around half way down the wall , ... i have never seen him do this before, and all of my other fish are doing fine.... i just want to make sure hes okay.. and if it sounds like hes not, what i can do to help