While I think there are a number of limitations to diagnoses I still think it's important to a degree. I mean, hypothetically if treatment and symptoms were mostly the same for something maybe there is no real reason to get caught up in what it's called, but getting it wrong could lead to the wrong treatment. For myself, different opinions on my diagnosis and lack of understanding on what is going on is confusing me. I am not sure what treatment I need, nor do I really have insight into what is happening (for example why I randomly feel a bit of paranoia).