lockdown fever 

Suffering mental and/or physical issues due to being under lockdown.

Man, she's really got lockdown fever this week. She's called me six times in two hours.

lockdown fever by TimTaiwan March 23, 2021

Lockdown Cabin Fever 

Only one stop short of complete solitary confinement, it's the state of mind induced by the deprivation of adequate social interaction due to lockdown restrictions over a prolonged period.

Feeling hopless and lost, maybe i've got lockdown cabin fever...?

Lockdown Cabin Fever by mrliondct January 27, 2021