I am 44 years old.Male.6'3 - 92kgs-No renal issues in the family.
3 month ago I noticed foam/bubbles in the toilets.
I did 2 blood tests to check kidneys, 5 dip stick urine tests at GP, 3 urine culture tests were sent to lab , 2 renal ultrasounds. However they all came back negative. No protein and no infection.I also did a STI screening (no risk) that came back negative.
However 3 months later I still have foam in my urine and I feel very tired as if I had an infection.I also have a slight pain on the side.
What could it be?
Thanking you in advance