everyone experience is little different but i would call the weight loss center with your questions. the gas is normal or has been for me and this month it has been a year. My friend who had surgery has to take a stool softener. The bad taste is your losing ketones which is a good thing because your burning body fat. There is something else you may experience is things not tasting right like went you a bad cold but worst. as for energy that normal especially if you don't get enough protein in. getting protein in and enough water are two very important thing if not most It also may help to take magnesium/potassium supplement that you can get at CMH which is Dr Clark other office on Thimble Shoals That where they carry a lot of protein products like ones in your sample pack.