I am gonna take a wild guess but the bone masses could be urate at that size they can pass pretty big ones and in the event the animal is slightly dehydrated they could cause a blockage.
Have you palpated her and do you know how far from the vent those "masses are", is your BP swelled up near the cloaca?
As for the blood have you paired her with a male? Has she shed recently.?
Those are theories but a possibility.
Now for the things that are certain
Not eating is not unusual at that size and 2 months is NOTHING it could last a year. Do not feed hamsters or gerbil it's not the solution and could be very problematic as they are like crack to BP and very hard to switch back from, the key is proper husbandry, patience and smaller meals when she resume feeding.
As for your vet find a new one.
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