Veterans, do you think depression and anxiety brought on by stress are symptoms of undiagnosed PTSD or a separate issue by themselves?

I am a Dessert Storm veteran but didn't see any combat. At that time I was in the Army National Guard. Later I switched services and didn't have any issues until I was in the last few years of my service where I was diagnosed with depression. In spite of that I was allowed to stay in service. The med board cleared me for service.

Fast forward when I got out I started having issues with anxiety and depression. Some of my anxiety has similar symptoms as PTSD but I cannot point to one specific event. I do remember episodes is sexual harassment,
and I was a hospital Corpsman and saw some stuff through out my career that was gnarly...

I accept the depression/anxiety diagnoses because I still get a rating but I often wonder if there VA used that diagnoses because I am female and didn't actually have to fight even though I was in a combat zone and received hazard duty pay.