Can you have some of the symptoms of ed, but not have the disorder?

Yes. Let's say that you can't obtain & maintain an erection adequate for sexual activity. That's a symptom of ed. But let's also assume that, while you've had these symptoms for years, you just lost your partner of many years and are grieving. As such, you have no interest in sexual activity, which is far from your mind. Therefore, because the inability is not causing distress, you do not have ed.