Plenty of people relate to social anxiety before becoming parents, but becoming a parent can generally up your stress level and so lead you to be more easily triggered. It can also be that being a parent opens up lots more occasions for meeting new people, which you may have become skilled at avoiding if you were previously socially anxious. For example, home visitors in the early stages after giving birth like midwives or health visitors as well as family or friends. There may also be opportunities to join breastfeeding groups, NCT postnatal groups, Bookbug sessions at the library, baby classes and toddler groups. You might also find yourself conflicted between following your values to engage with social opportunities for your child and feeling wary of them due to the exposure to your own social anxiety. It might help to know you’re not alone, and also that there are good resources out there whether you want some self-help or to find a therapist.
The above links to a free online CBT workbook on dealing with social anxiety which might be useful if you relate to that.
The above links to a blog post by Dr Russ Harris who has written a lot about ACT and anxiety – the post above is specifically about social anxiety. If you like his style and find it accessible, he has also written books such as “The happiness trap” which you might want to try. He also provides online courses for learning more about ACT for a fee if you look on his website. He also has free video clips on his site that you can watch to help with understanding ACT.
The Mindfulness and Acceptance Workbook for Social Anxiety and Shyness: Using Acceptance and Commitment Therapy to Free Yourself from Fear and Reclaim Your Life by Jan Fleming and Nancy Kocovski
The above is a self-help book on using ACT to cope with social anxiety