Baking soda and foamy urine

Hi, I added 1/2 tsp of Baking Soda to drinking water to give my body a little alkaline boost and I noticed that my urine was really foamy and frothy, just like dish washing soap. It actually looked like dish washing soap all foamed up. This happened the morning after I drank the Baking Soda alkaline drink twice in a day. Looking online I see that it could be protein from my kidneys. Is this really bad?

My PH is about 5.5 and I was hoping to raise it.