Can drinking too much soda cause gastritis?

Hi doctor,

I have been drinking soda four times a day instead of drinking water. I did not drink water for a month. I eat a lot of junk food and lots of dairy milk. After a couple of weeks, I noticed a mild stomach discomfort accompanied by excessive belching and passing gas, constipation, pain in the left upper quadrant that sometimes radiates to the chest. There is bloating, pain below the center of the diaphragm, dizziness whenever there is a feeling of pressure in the abdomen and there is back pain. Whenever I squeeze the center of my back I feel the pressure in front of my abdomen, my left side of the ribcage and whenever I press on it I can feel the air bubbles moving in my intestines and there is belching.