My green iguana, Iggy just turned 4 years old this past April (2012). I originally got her when she was a baby with the ex, and a few years ago she became mine when the ex didn't want her anymore. She was very sweet, and would even fall asleep on my shoulders, etc. Very mild mannered. Once in a while she would get moody...pretty much just puffing her cheeks out and putting her dewlap out, to bobbing her head at worst. In Jan/Feb (2012) I noticed signs of her becoming gravid, and an x-ray at the vet confirmed that she was. This was her first time. To make a long story short...after calcium and syringe feeding and doing everything properly, she was egg binding, and the vet removed 40+ eggs and her ovaries (end of Feb/beginning of March 2012). She recovered well from the surgery and put most of her weight back on. This week she shed her skin for the first time. The past few weeks however, she has become horribly aggressive. All I do is walk in the room and she will bob her head, even trying to snap/bite me through the glass of her cage...something she has NEVER tried to do before. She even charges at me and throws herself at the glass trying to bite me. I am able to put food in her cage and clean it out. She is still nice to my kitty when the kitty jumps into the cage. Nothing has changed in the room she is in or in her cage. What would cause her to act this way?