Acidic urine during pregnancy

I encounter pain when I pee. My gynae did physical check and urine culture to rule out UTI or any other causes. All was good. So she suspect that my urine might be too acidic. Could be the food I take. I eliminated all my sour preserved fruits n ginger. The pain go away. Does anyone has similar encounter like this? Any tips on how u can curb morning sickness without those sour preserved food? #firsttime_mommy