I have a PhD in organic chemistry from a top-tier university and published 5 papers in good journals. My PhD advisor was very helpful and helped me a lot but she is not in any of my papers as she believed her contribution is not enough for co-authorship. I thought it is a privilege that I can get all the credit.
Now that I apply for postdoc positions, it is a downside to my applications. In two phone interviews, I was specifically asked why my advisor is not in my papers. One told me "she probably did not like/approve your work" and the other said, "I am not satisfied that you can collaborate with your future supervisor".
Although she had complimented my publications in her letter of recommendation, nobody likes my sole authorship.
How can I apply for a postdoc as I feel I am stuck in my career because of a mistake.