Hello my name is Carol and i had my bypass done on the 25th Aug, ( I was actually in with Mazbrad) i have lost a total of 2st 5ib upto now, but i have diarrhoea all the time and just dont want to eat at all because of "stomach cramp like pains" after i have eaten plz does anyone know whats wrong? i also feel soooooooooooooooo cold and very tired? dr is starting me on ferrous fumerate today and arranged for me to have my B12 injection, i am taking all the vitamins recommended, did anyone else feel like this? and does it get any better? thank you x