Sick Savannah Monitor???

[Jay]

Hi im very worried about chomper my little sav hes about 6 months old i have never seen him do this he was sleeping in his water and flat almost floating i thought forsure he was dead so i took him out he looked stuned ..very disoriantated set him on his rock and he just slowly went to his hide that is not like him he always goes for your fingers and what not
his cage is home made 8 x 6 x 4 humidity 50 / 60 8 inches of dirt mixed with sand he has to hides and lots of burros basking is 110 and ambient is 85
please any information will help i am pretty scared for his health