Ive seen that before with pythons that are dehydrated and then are given ample access to water..They seem to almost "gorge" themselves on water and consume abit too much in one sitting...On another note, I would say it was NOT normal for a snake which has access to water at all times (like they should) show signs of this behavior. I personally would not have fed either one yet, I would be more concerned of getting them hydrated first...Leave them alone for a few days with water and warmth and keep an eye on them...Best of luck!