The fluid can have an enticing fragrance, smell yucky, like yeast, beer, fish, urine, ammonia
, sour, something horrid, or a dead mouse. Each cell in your body has a job to do and produces waste. Each has a protective coating to let the good things it needs in to it (osmosis), and keep baddies at bay. But when you're sick, or not eating well over a period of time, or consuming harmful things, your cells are compromised and can't function quite like they should.