I work in a corporate office of bank 10 to 6 sitting job .i usually take lunch at 1 o clock within half half an hour i feel sleepy and fall asleep.my friends keep waking me up but after 5 minutes i again fall asleep.this continues for 4 to 5 hours.when i go to wash face i can't properly walk. I am taking phsyciatric medicine from last 5 years but never feel the same my dr also changed medicine but not to avail. Than i went to GP and he wrote USG report is attached he said there is swelling in gallbladder that is reason i am feeling drowsiness. Please advise.