Do you think that messiah complex can be caused by other thing like past trauma, anxiety, depression, extreme stress? Or do you think that messiah complex is only something that comes from illnesses like bipolar or schizophrenia?

I think I've experienced this 2 years ago but I don't have bipolar or schizophrenia. I didn't think much of it during that period or after but when I started reading about It it started to seem strange to me. To clarify, I'm not looking to be diagnosed or anything I know that's against the rules, I have a psychologist that I'm working this out with. But I do want to know if you all think that it's possible for humans to experience these things without being mentally ill.