 [ Symptoms ] why am i always tired now that i am one year post op gastric bypass [ Disease ] unfortunately it is impossible to give you an answer in a forum like this because we do not know your complete medical history and because your question can only be answered with a physical examination and possibly some routine blood work to get started many things can cause fatigue your tiredness may not even be related to the gastric bypass only a medical professional can help you get to the bottom of what is causing your fatigue you can start by making an appointment with your primary health care provider he or she will perform routine tests and then refer you to a specialist if necessary wishing you well