From having a friend who had unusual seizures, it depends a lot on how brain test (EEG) during seizure or right afterwards. pLus what they see on MRI and PET scans.
From those they normally can tell if you had specific kind of seizure. BUT, my friend, who was having grand mal seizures as i witness it ( have many times in my dogs as well as cousin with epilepsy) yet doctors still have not figured out what exactly is triggering hers.
They are now looking at all her medications as possibly being the cause. She is on many (over 10) with most over what is consider a normal dose. Some she is taking high amount that they say it would put a horse to sleep and not kidding..she is on lean size so not a heavy woman not due to size, just do not seem to work.
She did not start them till hurting her hand on the job causing severe nerve damage. Went downhill then gets better and she has over 6 months clear of seizures so she has obtain her driver's license back a number of times. But when they hit her a lot...one a month or more, she lose her bodily functions..even on those days her tests still come back with not all normal but not enough off to show any direction in her brain or even her body where it might be stemming from. They even have flown her by ambulance doing tests in the helicopter but still nothing. Trying to immediate scans as soon as she arrives...even had ambulance carry special equipment to test her with ASAP but nothing is showing but few mild abnormalities.
I know how much it has played havoc with her life. Not being able to drive when the nearest store is over 10 miles and it is just very small country catch all store. Nearer larger town where all her doctor's visits is about 45 minutes so she must have someone drive her in and back. I do not live near her but try to go visit her as often as i can...it about 2 hour drive from my house. Plus, exhaustion and as you said lost of mobility. Some times she has to do PT to get it back again. There is losing normal bodily controls as well which she must reteach her body to hold again until she wakes up or can make it to the bathroom. This started in her late 40's and 10 years later still going on.
So i am very sorry and sorry i cannot help more. Since she has started weaning back the seizure have been at bay but like i said, we have had entire year almost clean...then boom!! back again. But i do have some hope...hopefully at least help clear up the confusion she has been having.
I hope you do find out...i say do some research and find the best neurologist in your area and try to get in to see them plus internist. Hopefully together they might see something everyone else has missed.
I should say this as well..she has gone to to Stanford and stayed down(over 2 weeks) there going through all their tests etc...trying to find the cause and they also came up with nothing. But you never know...so if you have place that teaches in your area like Stanford, any of the excellent teaching medical colleges, there are many across the US, you might try the live in treatment they offer.
I sincerely wish you all the best! I hope they do find what the cause is plus how to treat it as it is really a not fun place to be...most people just do not have clue all you are now having to deal with and i admire your up beat attitude through it all!
ps, one thing that did help of all weirdness..was marijuana. She seemed to do a whole lot better when she was using it but her pain doctor does not approve her to use it. She even offered to give up narcotic drug and use only it but they would not agree.
It is hard, she had stress in her life, like most of us. I could see that it did clearly affect her but not necessarily cause the seizures but once they started, her stress could just make everything worse until she calmed down again.