 [ Symptoms ] i have had this reoccurring cyst but i am not really sure if it is a cyst what is this and should i be worried  it is been coming and going for years but i do not know why i am overweight so i thought perhaps it was the skin rubbing and creating it but it is always on the left side of my underbelly and its random when it happens it is usually filled with some puss and blood and takes a couple of days to close and go away i clean myself daily and dry myself properly so it can not be that the area is infected i just do not know why this cyst or whatever this bubble pocket thing is i need answers [ Disease ] there are a number of things that could be contributing to your gas symptoms the growling stomach you mention is actually your intestines contracting from the movement of air through the intestines here are some potential causes of your gas taking in air through drinking with straws carbonated beverages chewing gum smoking and eating hard candies eating too many gas producing vegetables such as cauliflower broccoli cabbage brussels sprouts onions artichokes beans and asparagus certain fruits like apples pears and peaches may cause problems the inability to digest certain foods like lactose in milk not enough beneficial bacteria in your gastro intestinal system this webmd article provides more details on potential causes of gas you may want to see a registered dietitian andor write down what you eat to spot problem foods and if you continue to have pain or discomfort a doctor visit makes sense