Is it introvert or social anxiety?

Hello everyone. have always found myself alone since childhood, not talking to anyone. I enjoyed watching TV and being alone. In school, I often sat alone with no one around me, ate alone, and walked alone (not always 100% like this, but about 70% of the time). The problem is that I realized I do not have social skills. I don't know how to talk to people. Whenever I talk to someone, especially girls, strangers, or even my mother about certain subjects, I always get flushed, start sweating, and can't breathe (not always, but about 80% of the time). I have never spoken in front of a group. I always go back and try to hide myself. If someone, male or female, talks to me one-on-one, I can talk normally, but if there is another person, I can't control what will happen.

Is it introvert or social anxiety?
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