Came back from my 1st holiday in 9 yrs I'll with a heavy cold but had started to loose weight on my holiday. A few weeks ago I was diagnosed with a uti ( complaint going to docs as they were neglectful ) but had been losing weight although I had been eating but did have some diarrhoea and constipation. I have noticed that my poo has a complete white sleeve on some of it and I have lower stomach cramps , no appetite and have lost nearly 1stone in 6 weeks. My doctors have sent a urine sample off and a letter for a bladder and kidney scan. It's puzzling as I also am gluten sensitive and have an under active thyroid gland (17yrs ) , any one else had symptons like this ?