You mean that isn't normal?
You touched on a lot of issues there but I'll pretty much confine my answer to the subject. Yes, I do believe it's real. Even for someone with social anxiety and even even agoraphobia
Most of what you described really does sound like the typical human condition, at least to me. Anyone who isn't content to let their brain atrophy by sitting glued to a tv screen for hours a day has a longing for something out there. I suppose even some of those people have that longing. It kinda sounds like you face a choice between that life of quiet desperation and doing something... with something being your own concept. I wish you well.