I have. I couldn't even bear to stand on the doorstep.
I also saw an interview with Davina McCall where she described something similar after her brain surgery. She also talked about how much better she felt once she overcame the scary hurdle of rejoining normal life.
It was a combination of several things - the vulnerability you confront in major surgery and all the stresses and fears accompanying that, followed by feeling safe and cocooned at home afterwards whilst recovering, and having been disconnected from normal life outside home.
Are the panic attacks the reason you've only left home 3 times in a month? As part of recovering to return to work I'd normally expect someone to have been out more than that.
Physiologically your body can only sustain intense panic for a very short period of time - it will peak and then fall back to baseline. If you stay in the situation that's causing the panic (e.g. standing outside your house), the panic will peak and then gradually reduce. If you repeat that a few times, you can re-train your brain that leaving home is safe. (Whereas if you rush home as soon as you feel the panic then you're training your brain that outside is dangerous, which means you're more likely to have more panic attacks.)
I would suggest going out today a few times if possible. Depending on how far you got before the last panic attack, maybe first trip could be just to walk to end of your drive or end of your street and stay there until you feel calm. Treat it as testing what I've said if that helps it feels less daunting - it's just a scientific experiment to observe your anxiety peak and fall.
Then come back home, do something else and then go out again further, maybe to a park or something and stay there.
The important thing is that you stay in the situation long enough for the panic and anxiety to subside so you can feel reassured that it's safe and manageable. And then to repeat that positive experience until the panic stops making an appearance.
Going to work and having a good day will be useful for the same reason. It's about re-establishing your equilibrium and re-training your brain to feel safe again in everyday life.