16 wks plus still cannot drink water and UTI

Hi mummies, i cannot take any water since wk 8 and had been diagnosed with uti. Only frm midnight up till ard 8am i can take some milo. Went hospital for dripping for 3 times already because of dehydration. Every time i drink, i feel nausea and giddy. Had gastric problem bfore pregnant and it’s getting worse now so if i force myself to drink more, i will throw up acid and suffer frm severe gastric pain. Any mummies experience the same thing? Tried warm water, ginger ale, ginger tea, soft drink, honey water, chrysanthemum tea, ribena. All nt working🫠 Any advice?