Foam in urine indicates candida.
White threads in stools indicate candida.
I have myself never seen threads coming out in my urine, but some people here have witnessed it.
This is a very good sign. Your metabolims is efficient at expelling candida. First you should espect to expell it in your stool.... and later on it will come out of your sinus (once your intestine is clean enough).
KEEP AT IT!