Bubbly urine is one of symptoms of Diabetes2 with its patient currently with high glucose reading.
If I were you I 'd test my glucose reading. Good luck.
Depends on the cause of this bubbly urine - out of control diabetes, dehydration, recent kidney issues, or urinary tract infection. Also, there's a difference between bubbly and foamy. Since you haven't given us much to go by, I suggest you go see your doctor or go to your local hospital for an evaluation.