Sometimes when I have days off from work or vacation I can stay inside my home alone for 3 to 7 days without interacting with anyone. I feel absolutely zero side effects or have negative experiences.
I've told this to some of my friends but none of them, or anyone else I've ever meet for that matter, can relate or understand. Most would get bored or start having a lot of negative thoughts. But for me it's peaceful. As a matter of fact I realize my ability to tolerate and enjoy solitude can potentially "harm" my relationships so I actively put effort to reach out to people.
If I do leave my home it's for a walk in the forest, because I have to buy food or because of the gym (can't workout at home).
Anyways just wanted to share with people who can relate.
Take care.