Day 12 losing too much weight!

Hey,
Im on the morning of day 12 of 30.
30 days in the hopes of autolyzing my tumor..
Thing is... I am concerned with the amount of weight I am losing....
I have stopped my regular 2 hour daily work outs abut a week before starting this....
I have been driving my kid to school and home and cooking for her..
I was rebounding but stopped about a week ago..
Sooo... in essence, I am doing nothing active....
I started at 135, I am down to 116!!
I have lost 19 pounds in 12 days???
Thought the norm was a pound a day???
WTF??
I have, in the past done 2 - 21 day water fasts, where my end weight was 113 and 115... being 116 at 12 days in....Whats going on???