I agree with you that it sounds like a potentially toxic work environment. I wish the best for you in that situation and with your cyst.
"Anyway the other concern I have is that I have lost 8 lbs in three days and feel just a little week."
Losing 8 pounds in 3 days should be of no concern to you as it is very typical in a fast. I have lost 10.25 pounds in 4.33 days presently... and lost 20.5 over 10 days last time. In my best estimate, 13.5 of that was water and other temporary sources.
"she also does not belive in fasting, but I have survived."
You might consider compiling and condensing one page of the most compelling fasting literature you can find and share it with her. Though not necessary, it would be nice to have her support.