Metastatic bone disease occurs when cancer spreads from a primary organ site to bone. The spine is the most common location of metastatic disease. See the image below. Lateral radiograph shows sclerotic metastasis of the L2 vertebra in a 54-year-old man with prostatic carcinoma.
The meal itself, some meals are more likely to cause more gas than others e.g high fat, protein meals, or those with lots of onions or cabbage. Also if you lack enzymes to digest beans or milk or have gastritis or Gerd or other diseases affecting digestion you might have these issue. Lastly if you are constipated.
Gas is the most common cause of bloating, especially after eating. Gas builds up in the digestive tract when undigested food gets broken down and when you swallow air. Everyone swallows air when they eat or drink, but some people can swallow more than others, especially if they are: eating or drinking too fast.