Oddly enough, I am on my 3rd day of urine fasting also! Maybe we can cheer each other on! How long do you plan on fasting for?
I drink water, mineral water, and the passed urine (as much as I can).
The last two days, my urine has been clear and tastless for the most part also. But today, on the third day, the urine has not been clear. Not filmy like yours, but quite dark and the last one had alot of suds. Like soap almost. And it didn't taste very good either.
I thought it was strange since I've ingested just the water and urine. But I knew my body knows more than my mind. Thought it was interesting to see that you found some oddity on your third day also.
I hope the fourth and the rest goes back to being tastless.
I wish you the vest on your fast, and I know you wouldn't have undertaken such an effort if it weren't for serious reasons and amazing results!