Thirst test tomorrow: I'm so scared of it – what should I do?

I'm supposed to do a thirst test at the clinic tomorrow starting at 8:00 a.m. In the worst case scenario, that means drinking NOTHING until 10:00 p.m. Not even food with liquid like cucumber or watermelon… I need my 6-10 liters a day. If I can't drink anything for 1.5-2 hours during the day, the…

Aborting a thirst test in case of "unbearable thirst" – What are the criteria for this?

I'm supposed to undergo a thirst test to rule out central diabetes insipitus. I drink between 6 and 10 liters a day and can't even imagine not drinking for 6 hours, but I'm supposed to go up to 24 hours. On this website: Thirst test (two-stage test)_functional test – Laboratory Koblenz (labor-koblenz.de) now says: "Termination…