Comparative Suffering is close possibly.

withtherapy.com/…/what-is-comparative-suffering/

I think these thoughts are a bi-product of empathy. When you are attuned to the pain of others, it can be easy to invalidate your own. I once heard an exchange on public transit where 2 strangers were discussing their hardships and a sort of one upping of trauma was occuring. Eventually one of the participants said “we all feel pain in our own way” and that stuck with me as a tool for understanding my own tendancy to under value the trauma I have experienced throughout life.

Hope that helps provide some insight or a thread to tug at for understanding.