I had my band placed 5 days ago. So far....now that my gas pains are gone I am better!!! I was told that I had the 20cc band placed......and now I read there is a 4 cc band? IS this true? and if so , what is the difference? My Dr said that I had the "cadillac" of bands placed primarily because I am apple shaped and carry my weight in my belly. Please explain .....:nervous