Epilepsy Forum - first seizure a symptom of epilepsy ?

So early this afternoon around 12:30 my boyfriend rolled out of bed wheezing and having trouble breathing.
He ran to the bathroom and after waiting a bit to check on him I went to see if he was okay about 2 minutes later.
(Before this we'd woken up around 9:00am and went back to bed at about 11:30amish)

More or less so this is what happened from his (and my) point of view, because he doesn't recall any of it.
There was a tingling, in his hands and feet as well from the time that he woke up.
He went into the bathroom and immediately defecated almost involuntarily.
He got up and went to the mirror
He looked in the mirror and his whole body was BEAT read. Including his eyes.
He then passed out on the floor.

When I came to check on him his heart was pounding
He was having a REALLY hard time breathing
His eyes were fluttering and rolling up in his head, which is why I thought he was conscious just not focusing.
I had to shake him several times to get his attention, and most of the time he was unconscious.
When he could speak he kept saying, "help me I can't breathe, I can't move my legs help me."
He was twitching and spasming much like a seizure, but it wasn't as extreme as I've heard seizures described before.
Mostly his arm was to his stomach, kept unclenching, clenching, same with his legs, which were spasming too.
He had no muscle control of his arms or legs
His body was still red. He was sweating pretty badly.

At the time I did the only thing I could think of, which was to grab my inhaler to help him breathe better whilst I had my roommate call 911.
My boyfriend slowly came into reality and coherence, but he was still having a hard time speaking, couldn't move his limbs which were exhausted, and etc.

The inhaler helped him some but he was still having trouble breathing.
My roommate and I managed to carry him to the bed because he could absolutely not move his legs, and the Rescue Squad arrived there 2 minutes later.
They checked his pulse which was 60/20 and took him to the hospital.
By the time he was in the ambulance he was more coherant.
Yet even when he got to the hospital he still described his brain as feeling like mush, although he was his usual joking, if not somewhat sick looking self.

This was my mistake, but I didn't tell them about the muscle spasms.
At the time, the rescue squad assumed because he was beat red, and having diarrhea, as well as trouble breathing it was probably an allergic reaction as well as an asthma attack.

The Doctor at the hospital suggested the tingling was a sign of something neurological but nothing connected...

Anyway, I didn't tell them about the spasms because I didn't realize he didn't know nor remember he was having them (which from what I've read is very common among seizures) so I assumed he told them himself.

It wasn't till we got home later where he was like, "Man, I feel like I was having muscle spasms or something."

And my response was "You were, don't you remember?"

And that's how we figured it out.

He has all the signs listed from:
http://www.epilepsy.co m/101/ep101_symptom

Racing thoughts
Tingling feeling
Fear/Panic
* Dizziness
* Headache
* Lightheadedness
* Nausea
* Numbness
# Black out
# Confusion
Loss of consciousness
# Convulsion
# Difficulty talking
# Eyelid fluttering
# Eyes rolling up
# Falling down
# Foot stomping
# Hand waving
# Inability to move
Incontinence
Sweating
# Twitching movements
# Breathing difficulty
# Heart racing
* Memory loss
* Writing difficulty
Difficulty talking
Exhaustion
# Headache
# Nausea
# Pain
# Thirst
# Weakness
# Urge to urinate/defecate

Even now it's an effort for him to walk to much or even lift simple weight, again it just happened this early afternoon.

Obviously, the next step is to go straight to a neurologist.
But I was looking for some information as to:
What type of seizure this is.
How often this might occur.
If it will get worse.
If I should take him back to the ER ASAP if its an immediate threat since it just happened today.
What may have caused it (Again, we don't know, all he did was wake up and BAM)

Also, it's important to note that he has a history of recreational drug use, but nothing for months. And nothing additively. Ecstasy (nearly a year ago), acid (months ago), and coke(months ago) were all used in the past. Could any of these drugs have caused potential damage such as this. Even if its been awhile since he's done them? Please don't give me just speculations on this issue, a website or reference would be great so I could show it to him myself.

Thanks. We're really scared and trying to deal with this the best we can. Any help would be amazing. Thank you!

--Cat