If you mean going outside at all, I would say a month or two.
Going to places like stores...much longer...I never kept count and it all seems like a blur but I would say close to a year.
My mental, and physical health suffered and continue to suffer from this.
I hate not being able to go to the dentist or doctor without it being a damn near impossible feat.
On a more positive note, I try to go outside everyday to look around and check my catnip plant.
I <3 my cat ^_^
Tired of lying in the sunshine
Staying home to watch the rain
You are young and life is long
And there is time to kill today
And then one day you find
Ten years have got behind you
No one told you when to run
You missed the starting gun