Hi Sir, I'm having foamy urine for 4 years. The foam doesn't dissipate. It is most obvious at the morning but is still there all day. I don't have any other symptoms. I'm 23 years old male, I eat high protein diet and do strength training. I did 2 urine tests (one in 2017 and the other 5 months ago) and both were fine (albumin was negative). Can this be normal?