#3 bites the dust

It is 11:00 PM and I am in the living room watching Tori & Dean (sorry, very guilty pleasure) Jackie comes running out of the bedroom bumping in to things as he is headed my direction. He gets up on me almost like he is going to jump into my lap. (totally ignoring the "this is my space, this is yours" rule) I looked at him and scratched his ear. He was breathing really hard and looking at me with those big brown/orange eyes. I thought to myself "oh no....this is not a good sign." I asked him if he wanted to go outside and and he continued to look at me. I got up and opened the door and out he ran still bumping into things. I followed him out and he turned around and came back to me so I knelt down and scratched his ears while I talked to him. I got my cell phone out of my pocket and called Matt in the bedroom to come outside because I thought it was happening again. He was out in a flash and both of us watched Jack. He ended up going into the yard and trotting to the side behind the pool so that we couldn't see him. Angel followed but after a few seconds came running back. We both just stood there waiting for him. I am pretty sure I was holding my breath the entire time. He started to walk back around the pool and into our view while I breathed a sigh of relief but then I noticed that he was still walking funny. He stopped at the beginning of the cement and the chiminea was in my view so I could only see his legs (I have no idea where Matt was but I think he was behind me) I walked over to the side so I could look at Jack and BOOM....over he fell right into the cement. I think he got up on his own but I'm really not positive because even though I was walking over to him to help him, I was yelling "OH MY GOODNESS" as the tears swelled in my throat making my voice sound froggy. And then Matt pushed me out of the way and went over to save Jack himself (I'm pretty sure I was still making odd noises because it upset me so much)
We eventually got Jack to come in and he paced and paced the floor. Walking in circles. Matt tried to get him to go with him to bed but Jack had nothing to do with that. He just paced and paced and eventually ended up in the den and laid on the floor (strange for my dog that likes comfort) About 30 minutes had gone by and he finally went in to the bedroom.

So this is #3.....when is it considered excessive? Any one know? I would think 3 seizures in 5 months is a lot but is it? It sure scared my poor puppy. (and me!)