Night terrors?

Bunny

Recently my 15 month old has been waking about 1-3 nights a week crying, arching his back, kicking his legs and last night was not responsive (very disoriented) for a few seconds (but felt way longer). It’s freaking me out. I did some research and it sounds like night terrors. I’ve reached out to the pediatrician as well but waiting to hear back. Has anyones baby had night terrors or behaviors similar to this?