That sounds like no fun to me. I certainly would not want to live that way, either. I'm sorry you are feeling such intense anxiety symptoms. I'm sure most of us here can relate to having had such physical sensations.
For those who might not know, this message forum is open to anyone, to discuss social anxiety. The primary purpose is for those using the audio therapy series, "Overcoming Social Anxiety: Step by Step" to work through therapy and questions together, etc. So, on that basis, my perspective when I answer questions is to try to answer from a standpoint of "what should we do" - looking for solutions based on cognitive-behavioral therapy.
My question first is for you: what do you intend to do, then, to start on a path away from anxiety? What's your plan?
Perhaps other comments on your post will involve some sort of personal experience with medication, or some survival strategies. It's important to survive, yes. I don't weigh in on medication. On its own, at best, it helps us get to the point where we can do CBT enough for the CBT to work, so that a long term concrete solution can form and open up to you. Medication alone, although helpful for some, isn't the answer in and of iself. (For that, see a licensed professional formally.) And medication may not be necessary, as much as we're all looking for quick answers.
Physical symptoms are very rough. You feel them and you don't want to feel them. There's no getting around feeling awful, as you describe. So it may seem from this standpoint now that one should deal with symptoms. I don't think so. I think you deal with underlying social anxiety, through CBT, and the symptoms of social anxiety lessen as a result.
A few personal observations: I spent many years feeling bewildered and defeated by what seemed like intense waves of anxiety also, as you describe, and the resulting physical symptoms which I could not explain or figure out where they were coming from. I feel now that feelings come from thoughts. It took me a long time to see that connection. They don't just appear out of nowhere, at least not in social anxiety. The feeling of light-headedness or spinning can be from the cortisol and adrenaline that floods our bodies due to anxiety and fear. Thoughts affect your physical body, thoughts bring on the feelings. Once again, I agree with you that this is no way to live. It's a living nightmare.
Understand this, educate yourself, and start on a path of structured cognitive therapy which will lead you away from this hell.