Check his humidity, he still should not look really "dry" even when going in to shed.
None of mine like to get caught drinking, they all jump back when you open the tub if they are doing that.
Not eating could be because of a shed cycle. One week is nothing to worry about.
Double check you husbandry and try to feed him again next week. Keep on the lookout for a pinkish belly and cloudy eyes indicating a upcoming shed.