My Cay Caulker's Boa just passed away

[Mikoh4792]

It was her feeding day two days ago and she seemed fine.She was in her warm hide until today. I was doing a water change for her enclosure and I noticed she regurgitated again. I cleaned that mess up and put her in a tub with shallow luke warm water to wash off the smelly juices. After I put her back in her cage she started to convulse and twitch like crazy. Almost like a seizure. At one point she bit her self and constricted. Then she started to lay upside down. After a few minutes of this convulsing she died. There was no more breathing, her body lay motionless and her body went limp. I tried touching her head, nothing. I flashed a light into her eyes, no constriction.

What could this have been? I've only had her now for 2-3 weeks and this is the first time I saw her do this. I don't know if this is of relevance but she regurgitated before(as some of you may already know) and she came to me very skinny and underfed.

She had two warm hides. One was 92F, the other was 89F. She had plenty of hides and temperatures ranges in her enclosure to choose from. Fresh water everyday.