You have posted this message multiple times. That tells me that you are Not getting the answers you are seeking.
I have mentioned this to you before. You are way under the ideal weight for 5'-7" person. It seems to me that you have an extreme, arbitrary ultimate goal of 78lbs.
Drawing blood by a doctor should not be a problem. Some of you blood work may show up better and some out of range. Are you telling your doctor that you are fasting with water only?
What is a true hunger to you?
You know on average you lose 1lb/day. Dry fast will give you more weight loss, but any sign of discomfort and you will have to drink water, sip water slowly.