bursted ulcer and half stomach pains

hi i am 52 years old and i got a bursted ulcer when i was 48 and now i am taking loads of tablets for example motillium and diceing and then i have to take ensure drinks to fill me up as i can only eat a small bit if i eat more than i can i ge very sick and weak. i also got the doctor up to me tonight and he gave me movicol to relief me from cnstipation. as i no that i dont have constipation. i am getting the pains under neath my ribs where part of my stomach is missing i would be very gratefull if you could help because i am realy worried and want to no that what it is before i go to the hostipal as i am really scared