bubbles in your urine can be from sugar. your body's way of getting rid of excess sugar.
since diabetes is abnormally high sugar in your blood the ONLY way to tell if you have diabetes with blood work
find out, diabetes is controlable.
You need to see your doctor have the OGTT test run, and an A1C, your symptoms DO point to Type 2 Diabetes, but without the blood work, it is hard to be positive.
Please see a doctor as soon as possible for the testing as mentioned above. If you do have diabetes, from your syptoms it is a possibility, it is really important to get this looked at asap.
YOu may be better off stopping the protein drinks and avoiding all sugars. Low carb, moderate protein, high fat diet is the best proven tool for helping to control blood sugars.
Please see a doctor asap for testing. come back and let us know how you go.