I will tell you this it is not because you are not eating that you are burping and farting. Here are some things that I found for you on this subject:
thesite.Org sniffs out the facts behind wind breaking.
What is it?
Farting is properly known as flatulence. It's a natural body mechanism, in which intestinal gas passes out through the anus. It's quite normal to fart - everyone does it (yes, even the queen), but for some bloating and excessive wind can be a real problem.
What causes it?
A number of factors lead to the build up of intestinal gases, such as carbon dioxide, methane and hydrogen, as well as other gases produced by bacteria in the gut - often resulting in a bottom burp:
1 .Your diet
some foodstuffs produce more gas than others during digestion. Baked beans are a case in point, mostly because they contain sugars that cannot be broken down. Instead, they ferment in the gut and leave you cutting the cheese for a while afterwards. Broccoli and cabbage can also encourage some big time trumpeting, as does any other food containing large amounts of gas-tastic soluble fibre (including beans, just to secure their status as prime fart-fodder). Eggs and meat tend to produce the stinkiest guffs, however, due to their high sulphur content.
Sort it: don't delete this kind of food from your diet, as it plays a vital role in maintaining a balanced diet. Just open a window or something. If it's a chronic problem, however, consult your doctor to ensure there's no underlying medical cause.
2. Swallowed air
it isn't just food that snakes down your oesophagus when you eat, but a lot of air too. Some people swallow more than others (if they're nervous, or through fast eating/snacking on the move) which can cause burping and indigestion. Naturally, some air travels further, and exits at the other end.
Sort it: eat slowly, and also try reducing your fizzy drink intake - a common cause.
3. Bacteria
don't be alarmed. You need these bugs to help break down food as it passes through the intestines. As part of this process, the bacteria that lives in your guts produces gas - and this has to go somewhere!
Sort it: to some extent your diet determines the level of bacteria activity. For example, a baked bean and cauliflower dish is likely to demand a little bug overtime in your guts, temporarily transforming it into 'the fart factory'
4. Stress, worry and anxiety
external forces believed to stimulate bacteria activity in the gut. Sort it: ask what's troubling you, and seek to overcome it. If the farts subside, you can safely say they started out in your mind.
5. Lactose intolerance
people with lactose intolerance are short on an enzyme called lactase. This should line the intestine, and serves to break down milk or dairy products. In people who are lactose deficient, (which tends to be a hereditary condition) consuming this kind of food can result in stomach cramping and the production of a lot of intestinal wind - even diarrhoea.
Sort it: if you suspect you're lactose intolerant, (i.E. If dairy products give you jip) then seek advice from your gp. S/he can make a proper diagnosis, and advice you on any necessary dietary changes.
Final factamundo
the word "fart" stands for: frequency actuated rectal tremor.
Hope this helps