I just recently had a sleep study and was prescribed the cpap machine. It's working, I can't remember the last time that slept as much. The only problem is getting used to having that mask over my nose and mouth. I wake up in the middle of the night with the mask in my hand. I received a telephone call from the person that brought the machine out to me and informed her of this and she told me that it was okay, a lot of people do that. I believe that you should get a sleep study done to determine what the problem is asap. Good luck to you
Are you taking any type of medications? Some can cause very vivid dreams or sleepwalking, esp. if one has a CNS disorder of any kind.
It sounds to me like you had a nightmare. I have had something similar (though not frequent thank goodness) where I was crying in the dream and then woke to find I actually was crying. Had you actually had a seizure while sleeping, you wouldn't remember it or be able to describe the image of laying in the floor in a ball. Those suffering from true seizures may feel an aura beforehand, but do not recall the seizure itself. It may be that, with your sinuses acting up, you were running a fever while sleeping and that induced the vivid dream.
I am glad it wasn't real and that you are better today.
Take care.