Help with possible health issues??

[soad]

So I have a beautiful 3 year old paradigm boa. I've never held a snake like her though. When I pick her up she twitches pretty intensely. Almost like she seizes out for a split second as if I'm not supporting her good enough or something. She also has a cracking/popping noise that's happens almost every time I hold her. It's very strange and I haven't experienced anything like it so I was wondering if that's a normal thing or if she may need to go to a vet?? Also she completely soaked half of her 4 ft cage with urine. Hasn't done that before, is that just a well hydrated snake? Is it not always a thick urate? Any input would be very appreciated!