I highly recommend discussing this with a medical professional. The main risk of body inflation, by the introduction of air or water into the intestines, is that the distention and pressure of the air or water on the intestines could lead to damage to the intestinal wall. In the most severe cases, this could cause rupture of the intestines, which could lead to a life threatening infection and the need for emergency surgery. Other forms of body inflation - for example, the introduction in women of air or water into the vagina and uterus-- are also quite dangerous, for similar reasons. From a medical standpoint, inflation is a fetish practice with significant inherent risks.
I would suggest talking with a medical professional about this issue, particularly if you find it hard to stop the behavior. You may need help from a psychologist
or from a therapist
to help you work through the reasons why you find this behavior compelling and to help you find effective strategies that will help you to stop. If you don't know where to find a psychologist or a therapist, you could start by talking with your primary care doctor
, who should be able to help direct you to the resources that you need.