Hi. Thanks for your query. The hot pad put on any part of the body takes away the pain by increasing the local circulation and carrying away the substances that cause pain. So the cause can be anything. The bloating is definitely suggests the intestines have a problem, and to top up my the problem you have taken the laxative. This can enhance the problem by its action. I would suggest you the following : Intestinal infections Aerophagia, anxiety and stress Indigestion Intestinal obstruction and so on. Advice : Clinical evaluation and examination, investigations like USG standing X-ray of abdominal to get a diagnosis first and treat accordingly.