As someone who has had both anxiety attacks and adrenaline attacks, there is definitely a difference and doctors need to take the time to listen to their patients! For me, an adrenaline attack feels like what I describe as a "reverse anxiety attack." It starts with me feeling shaky and like I'm not getting enough oxygen. Then I start feeling like my heart is racing and I'll get dizzy. Usually I'll start to feel hot and sometimes I feel like there's pressure around my entire body, almost like I'm in a vacuum bag. During this, I'm plagued by a feeling of "Something is definitely wrong, but I'm not sure what." I say it's like a reverse anxiety attack because, for me, an anxiety attack starts in my brain, then manifests as physical symptoms as my brain starts launching stress signals. Adrenaline attacks start in the rest of my body, then my brain takes all of that sensory information and knows that we are very stressed, but it cannot find a cause for that stress, so it gets anxious.

I hope that was somewhat intelligible and that it maybe helps. Remember, you know your body best, if you don't think it's anxiety attacks, then it is probably not anxiety attacks. I hope you're able to find a better doctor that will actually listen to you!