Not sleeping at all

Hello ! I am new here and maybe people will help me out .. i dont know what to do my baby girl is 10 months old from small was crying i diagnosed she is allergic to cow milk i have hypoallergenic milk and she is eating but doesnt like it … i give her food at the days amd afternoons but her stomach is not very strong so when she eats the milk she is crying when i give her food is the same . No sleeping nights and sometimes all days … i need some sleep rest i am exhausted … i was at the hospital doctors but they said nothing about my daughter…. Someone has some ideas to give me so i can sleep and my little girl in peace !!!