Another poster pointed this out and they were quite correct, despite downvotes - "normality" isn't a goal. Normal is a section of the bellcurve and fitting into that curve isn't supposed to be a goal, it's just descriptive of a larger group.

The question should really be "does X behavior cause any problems in my life?" If it doesn't cause you problems then you're good, and if it does, then you should look to alleviate those problems (whether that's modifying the behavior or the situation). If playing out social situations does alleviate the anxiety and your only downside is sometimes the people in your house give you funny looks - well that's probably a worthwhile tradeoff. On the other hand, if the behavior is aggravating social anxiety, then it's worth talking to someone about.

Social anxiety falls under the generalized anxiety tree, and most people do feel some anxiety in social situations - but if it's disruptive to your life then it may be worth chatting with a therapist with. Most therapists are going to try and identify the specific causes and then give you tools to alleviate those feelings.