Screaming baby

My 2 month old won’t stop screaming. 2 nights in a row now he just non stop screamed for 2 hours he won’t settle for his bottle, dummy, rocking, music, change nappy. Any ideas why this is? I’m a new mum I just feel like I’m failing I’m just so upset I don’t know what’s wrong with him don’t know why he screaming why he won’t stop and sleep. He only cried at night time for about 2 hours so don’t think it could be colic. I think it’s because he overtired he won’t settle to sleep