Why do you want to go to the vet?
It's a male he is huge, it's breeding season and it was overfed, so fasting is not really a surprise and could easily last 6 months or more.
If you want a BP that feed with consitency feed small preys, BP do not need 200 grams prey per week, not even the largest females double his size.
A male that size will do fine with preys between 65 and 85 grams a week.
Now all it is about is patience.
Also 100 grams at that size is likely the equivalent of a bowel movement.
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