Feeling uncomfortable in a relationship with a clingy partner

My partner is super clingy and obsessive. I feel uncomfortable even using that word to describe him. However, I am feeling anxious and I wonder if this is a normal thing in a codependent relationship. The feeling of being constantly stalked and spied on. Right now I’m in the bathroom and my partner is waiting outside of the door for me to come out. He does this often and it creeps me out. We just spent maybe 2 hours cuddling and watching tv. He often follows me around the house. And just stands in the room and watches me. If I go into our bedroom to lay down, he lays down with me. If I go to the bathroom he follows me. When I have to use the bathroom in the middle of the night he says he misses me and wakes up with me. Please help. I don’t know how to communicate that I need space in a way that isn’t hurtful. I do love him very much but recently the closeness and clinginess has been too much. I often feels like he is my shadow. Constantly behind me. I find it to be scary and not romantic. I do not want to break up but I would like to know how to resolve this issue in a healthy way