Does social anxiety cause irritability ...and can you be hospitalised for it?

Yes, it can make you easily annoyed. I get angry when things go wrong because I am already imagining consequences, which might not happen, of course, but anxiety does that. Like avoiding people and worrying about a meeting at work or a social event, meet-ups, or dates, or attending someone's wedding. So for example, if the bus is really late, I'm anxious about how busy it will be on it, and I have an appointment out of town, I think of all sorts of negative outcomes for this. Being complained at on arrival for lateness, or having to pay a cancellation fee for a missed appointment and having to go home and wait for the new appointment to come around. And I get stressed and have an anxiety overload. None of those things might happen but it's very real and plausible at the same time and I get furious.

However you consider SA, just know that anxiety, and also depression, are very common and the top 2, most people seek help with, so you are not an outcast! A self-help book can be a great resource to help drag yourself out of the grip, especially if the cost to see a psychologist is an issue. YouTube tips, from professionals, can be really beneficial too. And...meds also!

I think so. Anxiety causes physiological changes to the body. You might want to research the effects to see how some of them may sound familiar to what you experience. Per my understanding, it causes increased production of white blood cells, as if preparing you to handle physical assault. The white cells stick to the walls of our blood vessels, and accumulate, leading to an array of issues: strokes, heart disease, hight blood pressure, etc. And more subtle effects as various arteries and veins become occluded, preventing our autonomic nervous system from properly managing our body.

Anxiety can take on many forms. And any form of anxiety can lead to irritability.

I've dealt with some of this. Please feel free to PM. I can't give you medical advice but I'd be happy to share some of the things I picked up along the way.

I think you might be hospitalized for other illnesses triggered by it.

I don't consider it as a mental illness either , but at the anxieties can be tough if your only experiencing it , but after awhile if you sit with it and go tbrough it (all the mental chatter in the mind ) one day you won't be afraid of it as much .

Like many other mental issues it is not just a diagnosis, it is on a spectrum which might cause slight distress and needs a little help or can be obsessive and debilitating and require much much more.

sadly yes, poor mental condition is a risk factor of chronic physical conditions

Yes

I think it can yeah