I don't mean to scare you, but I've heard a lot about Nido Virus. Apparently it is far more wide spread then previously thought. Esp. since not all breeders are very forth coming with admitting it may be in their collection. Or they just don't test.
Esp. with Carpet Pythons..it wouldn't hurt to rule it out.
Here is one video that explains how to do the test from home
https://youtu.be/g6IzrBZSZqA
Another video
https://youtu.be/j2YMvgwrNDw
Again. Not tying to worry or scare you. But it may not be such a bad idea to run the test. Esp. since things haven't progressed the way they should have. At least you would know...or you could rule it out.
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