I've expressed something similar in therapy, how it feels like other people have been through much worse than me, like their childhoods, and I'm making this big thing out of nothing. My T has said that different people react different ways to different things--one person might go through this huge trauma and be barely affected by it, while someone else may go through something much more minor but be strongly affected. It's just how people are. He (and ex-T) said some of my reactions suggest trauma in my background, but I feel it's all little-T trauma, not capital-T trauma. (I did make a list, and he agreed how some of it would be traumatic.) But he said it can be a cumulative effect. He also said something that really made me think--that dealing with rather intense anxiety (and OCD) my whole life could be considered a form of ongoing trauma.