Abstraction bug

Caster abstraction out of curiosity in pyramid and got plague for long time. Worded, tried to heal in the temple - failed. Bought pill of cure disease - "You no longer have a need for food". Looks like it cannot be cured if you are a mummy and have abstraction up. Perhpas it will work if you vampired some flesh? Couldn't test it, had no mana. So, been sitting for about 50 ticks with -----mana and ----mvs.