To much clinginess

Cassie • 🎉🎃🍁🍂 blessed with a beautiful 3 year old boy a 2 year girl and a 9 week girl👨‍👩‍👧‍👦
My lo is 81/2 months old, he is in the middle of teething but currently does not have any teeth as of yet, he's weaning really well but lately is acting like he is wanting so much attention that I can't keep up, I'm pregnant with no2 and I need my rest while he naps but that isn't for long as he only naps 15,20 mins each time. He acts like he is always hungry and is never satisfied, he has his 3 meals a day aswel as his milk and snacks in between, but it's getting out of hand as I can't leave him for 5 mins to even have something to eat myself as he wants whatever it is I'm eating, I've tried feeding him first and then letting me have food but doesn't work. If I leave the room he is crying and moaning the whole time as if he don't want me to go, he's moaning on the floor because he is stick on his belly when he can easily roll over but pretends he can't and so has a right baby face on him. Any glo moms able to help on what I can do to make it that bit easier for me to at least have something to eat or drink without my child screaming for attention from me. I also have pnd because when he was born he had milk intolerance and we didn't know until he was about 3 months x 😔