Sleep Issues?!?

🌼Sara🌼
My baby boy is almost 5 months and really struggling with sleeping at night. He wakes up constantly(every 2 hours or less). Up until a month ago he was a decent sleeper with stretches of 5 hours, awake for a few minutes and then straight back to sleep. Now he wakes up screaming and will not settle again until he's given a bottle- I feel like I have created a problem by giving him the bottle on demand because he seems to only want it for comfort and not because he's hungry. I'm an exhausted momma and my poor baby is exhausted too-I just don't know what to do for him at this point. Anyone dealing/delt with this and have any suggestions??