getting off you're ass is easy even for a Hikkomori,
the problem is the social interaction,

for me i hate even going to the shop because i have to talk to the shopkeeper,

sometimes i can be absolutely fine but then other times i can be absolutely drained and be searching for the exit (more often than not)

the thing is Hikkomori have found a way not to feel anxiety and that is stay away from people and writing on forums such as this.