I drank 500 ml of sterilised whole milk all at once and it said there was 3.6g fat in 100 ml (3.5%) which makes 18g fat in 500ml (17.5%) how much calories is that? Thanks :)

309 calories. Calories in 500 ml of Whole Milk and Nutrition Facts (http://www.fatsecret.com/calories-nutrition/generic/milk-cows-fluid-whole?portionid=1136439&portionamount=500.000)

You seem to have many issues concerning weight, your hair, your height. Do you do well in school, have a lot of friends, take part in social activities?