((((Hug)))). Or maybe you need > more!!!
Maybe your Uncle's day care centre could do a 241, for you!
I'm not at all surprised you locked yourself in the bathroom for a cry. That constant being on you and mum, mum, Mum, is massively bloody draining!
I'm so sorry about your DH/his Dad, that definitely makes it so hard!
It's ok to get help for vulnerable people and right now I'd say you're BOTH vulnerable, do you have anyone that would have him for a few -- months-- hours?
Definitely start having 'Mum Time'. as a PP SAID, explain that you love him, but you need 'alone/quiet time '. start slowly & build up.
I hope you're asleep now and that he sleeps through. You both need it
Take care of yourself 🌷