Hard to tell what you saw not having seen it, how does your BP looks like now? Did whatever you see go back inside?
In the meantime do yourself a favor and forget about you so called "reptile specialist" he obviously have not clue.
A few points here
NO soaking, soaking is stressful for a snake and totally unecessary and detrimental to shed and health.
The BP you have should have been fed bigger preys a lot sooner, I don't even start hatchling on pinky rats (too small) and by the time they are 5 or 6 month they eat a much bigger prey than a fuzzy. Offer a prey equal the animal's girth size from now own.
DO NOT intervene with normal bowel movement, as little as the animal was fed there was actually very little to be defecated and trying to help an animal pass u rate or feces should ONLY be done if you know what you are doing and only if ABSOLUTELY necessary (this means obvious blocage which was not the case here)
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