I had nausea three times in a week, 1 severe vomiting in hospital, released bladder inf, now pale pale stool still lots of pains in tummy like bad gas?

Find symptom's cause: Nausea/vomiting may be gi-related (food poisoning, peptic disease, gastroparesis, due to biliary & pancreatic disease, gas/bloat syndrome, small bowel problems). Consider "central" causes: motion sickness, vertigo, migraine headache, brain problems (some very serious). Also, rule out infection (? Urinary tract), medication side effects, pregnancy, & even reaction to stress. Find & treat cause.