<human>: [magnus,] my rescue husky-white shepherd who we rescued on mother's day this year developed a strange behavior in the last 2 weeks or so that i didn't pick up on until today.

When i was up walking around sometimes he would come lay down in front of me and chew on his working collar.  wherever i walked he'd move to be in front of me.  well tonight he started doing it and i sat down to study what he was doing. i was leaned forward on the couch when he stood up and walked to me and headbutted my stomach and kept pushing against me.  finally he had enough and put his paws on my shoulders and pushed me back against the back of the couch and kissed my ears and neck (like you might do a puppy).

this confused me as i had no idea what he was doing and he knows better than to get on people without being called. so i took him outside thinking maybe it was an emergency, he had no interest in anything outside and when i threw his tennis balls he hid all of them in the sunflowers (his sign of saying he didn't want to play).  He got really tense and tried to push me into the patio furniture.  That's when i figured it out.

I was diagnosed with Multiple Sclerosis January of this year.  as a result i am sometimes stricken with sudden total muscle exhaustion. We originally got magnus to train him to be a service dog.  as a result whenever i have these attacks i've given him the shirt i was wearing when it happened (about twice a week). i didn't think he'd pick it up this fast.  

So i sat down, as that was all I could do and he laid at my feet watching the door in an alert guarding position since my wife and daughter are out of town and i'm by myself.  While i sat there, effectively paralyzed i thought back and noticed that every time he chewed on his working collar in the last two weeks had corresponded with an "attack."  i just wasn't smart enough to put it together until now.

this is good, as the condition progresses it will lead to grand mal seizures that he will eventually be able to detect.

Condense the text into a few key points
<bot>: magnus detected an MS attack that left me effectively paralyzed and i noticed he did it several times in the past few weeks corresponding with other attacks.  fucking awesome.