I was watching embarrasing bodies last night and the doctor said cancer doesnt hurt. and ive heard that lots of times too. the abdominal pain could have been a huggggggggeee number of different things! and once you start to lose your appetite because of pain, it can continue for a long time...if you think about it by not eating because of pain your stomach gets used to less amount of food and therefore wont want much even when the pains gone because its shrunk! im no doctor or anything hun but id reccomend trying to eat the things you used to like before and eat a fair amount of it (even though you dont want to) once you start filling yourself back up you may find your appetite comes back. i dont think you have anything to worry about xxx