Weird huh? He's my brother's Iguana, he's been with us for a few weeks because my brother's between homes; the Iguana is usually pretty active and likes to watch what we're doing - but the last 2 days or so...he just looks depressed :-/ He just lies on his heat rock and does nothing. He's still shedding, but eating well.
Iguanas are solitary by nature. I've never had an iguana but I have had snakes and other smaller reptiles. When my snake shed it would be just as "depressed" and just spend most of its time in one spot until a day or so after the shedding was complete. She also didn't eat very much. You said the iguana is still shedding? I can see that being the issue. Does he have something largish and rough to rub against? Try bathing him in lukewarm water to help along the shedding.
