Hello Tiago
Firstly, may just say I salute you!

(no smiley for that so a round of applause will have to do!!)
I think it's very admirable to go out on a limb and try something like that to try and help your AS. I also think it's courageous of you to share you experience with us! lol
I look forward to hearing your updates about what effect it is having on you, for the better, I hope.
I know one thing about urine - it is sterile when fresh - for some reason my Mum has told me that on many occassions when accidents have occured with my little one's!!
Good luck and make sure you drink plenty of water - especially if you are drinking your first pee of the day!