I feel so awkward and out of place when I do anything alone in public. Even basic things like taking the bus, grabbing a coffee, or grocery shopping. The idea of going to a gym by myself, even just to walk on a treadmill, sounds horrific. And people can do these things without a second thought? The moment I step outside I feel so watched and judged for no reason and it's exhausting. It's like I suddenly have no idea what to do with my face or how to walk straight.
I know most social issues revolve more around how to interact with people, but how does anyone go in public and feel at ease around other people in general?