From the sound of what the monitor was going through it seems that it had neurological problems most likly caused from vitamin and nutrient deficiencies.
Think of it this way. The baby is a farm hatched monitor. In most cases within a week of hatching the babies are packed into wooden crates by the hundereds shipped to the dealer. Then the dealer sections off groups into other crates or shipping boxes and sends them to the stores. All this time the animal goes without food and water. So very quickly the animals health falls and most retail stores (even online) sell them just shortly after receiving the shipment of monitors. Monitors get all their vitamins out of the food they eat and with no fat stores to back them up during shipping 90% of the monitors die within the first week of ownership. It's very sad but true.
Vitamins are essential for brain development, bone growth, heart/lungs, and even their vision. I have done some rescues where monitors couldn't walk or even see because they were so vitamin deficiant and malnourished.
No matter who you buy your monitor from if it's a fresh import or even one that has been captive for a week or so this could be the problem. The best way to avoid getting monitors like this is to ask a lot of questions. Like When did you recieve the animal in the shop, what has it been eating, has it been treated for parasites; if so how many times, etc if it's a w/c f/h animal, or if they say it's a captive bred (c/b) ask for proof on that. When were the eggs laid, do you have pictures of the eggs, what was the hatch date. Pictures of each stage is important and/or any logged records on the clutch/hatchlings. I would asked for both.
Well I have rambled on long enough. I hope I'm not repeating what others have said, sorry if I did.
Best of luck on your new one coming soon. I hope you have a much better expieriance with this one.
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Christine :>~
A good friend will come bail you out fo jail, but a true friend will be sitting next to you saying "Damn that was fun!!".