Phobia of people coming to my house

My house is my safe haven and I feel invaded and insecure when people come over. Especially when they come over unannounced.

It stresses me out to the point that I cant concentrate and I feel physically ill. I dont know what is wrong or why I have this phobia of people coming to my house.

One issue is that since I married my husband my house is a mess and it is embarrasing to me, but I had this issue long before my messy house.