Crying all the time

Baby is 9 weeks old, 2 weeks corrected. We are having a very hard week. If he is awake, he is crying ALL the time. There is no break from it until he falls asleep and he will only sleep on me not in his cot so I'm very exhausted. Ontop of this he's got severe reflux. Did anyone else experience this with them premmie and what did you do? Thank you x