I'm 18 years old. I've unintentionally lost 13 kg in the past 2 months. I have other symptoms like reccurent fever which has not gone down in a week. Blood and urine is normal. Extreme pelvic and lower abdomen pain. Abdomen is bloated and I'm unable to swallow much good at a time. I've met 7 doctors including 4 specialists and still remain undiagnosed. Could someone give me some insight on my illness. Could it be cancer?