There are plenty of people on this board that are armed 100% of the time they are home... some even arm themselves in the shower.
Is it paranoia? It depends on YOUR viewpoint and comfort level. If someone thinks your having weapons around your house is paranoid, that's their opinion and you shouldn't worry about their opinion. It's what you want to feel safe. Don't let someone else determine your comfort zone unless they're providing the security.
Wear your weapon instead of stashing them all around the house.