Waking Up To A Panic Attack, But Is It?

I have woken up with panic attacks before. Heart pounding, drenched in sweat, feeling like if one more thing touched me I was going to scream until my heart burst. This was different though, and I ve done it as long as I remember. The heart pounding and sweat was there, plus confusion at waking up, but not the end of all terror. My psychiatrist says it is a panic attack, while my EMDR counsellor wants to test me for sleep apnea. Anyone else had this happen?
https://www.myptsd.com/c/threads/waking-up-to-a-panic-attack-but-is-it.49910/