There is nothing wrong with this anxiety; and, as I told someone else, give yourself permission to feel it.

I find making a plan helps whether it be that conversation I would rather avoid or even going to shop for groceries. CBT has helped greatly. In these cases especially 'Decatstrophic Thinking Worksheets' and a balance sheet identifying 'Evidence for my fear Vs Evidence Against'. I even have a plan of action for what to do when the phone rings or getting the courage to open my mailbox.