I don't understand why this is happening. Why do I feel this way?
I don't like going outside anymore
The short answer I could give is that we don't know why it's happening. The longer answer could come from deeper exploration as to your fears, or anxieties, that you experience maybe just thinking of going outside. But any sort of exploration about this almost HAS to begin with an agreement within you (and all of your feelings), that's it's not something to be ashamed of. If we are ashamed of any of our behaviors, then we lose the ability to sit with them and see where they are coming from.This could be something that can be worked through in therapy, and specifically with a therapist who specializes in anxiety and more specifically, agoraphobia.