This morning my Bp had his head and about 6 inches of his neck is an S shape vertically looking straight up against the glass of his tank. He did this for maybe 20 mins before I got him out to see if anything was wrong. This was the first time he did that, and he has been eating and shedding normally. He also has been possibly wheezing. I am honestly not sure if it is a wheeze or a hiss. He hasn't been breething with an open mouth or excreting any mucus. What does a wheeze sound like in BP's?