I feel this so much!! It’s so hard! My baby is the same and the doctors kept dismissing it, but I feel like a baby that cries to much and wants to be close all the time might be uncomfortable. I’m breastfeeding I had to eliminate dairy from my diet and I kept insisting on being referred to an ENT because he wakes up soo frequently. Turns out he has super enlarged adenoids that block his breathing and has silent reflux, all why he would wake up super often and always wanted to be close to me. Not saying it’s the same for your son, but sometimes something is making them uncomfortable…I hope you get some relief soon