My son is 17 and in the 12th grade (graduation this year, YEAH!! College next, and I can see the end to my fingernails!!)

Although he was 7 when he presented, was diagnosed, and had his surgeries, many of the things you described have presented over the years (and some still now).
From what I understand, the frontal lobes control emotions, frustration, and even the ability to pay attention. I had one neuropsychiatrist (spelling??) described my son as ADD -- but clarified that it was due to the strokes, NOT typical ADD. My son, as a youngster and even now, has a short fuse. He has a hard time with people believing he is "different". He has managed to stay on grade level -- but it does require modifications. Getting the teachers to realize that he needs these modifications has been a fight. We did choose to stay with special education and IEP's because many teachers understand that much more readily than 504 plans.
I don't know how much of his peers issues are an inability to consider his situation or are them being just plain snobby/rude/immature. His friends are well aware of his condition since he has had it so long, but don't seem to give it much consideration. He wanted to play football all through high school. His pediatrician never approved it. In fact, we went back to his specialists to get it approved for this year. So there he is, trying to fit in -- but behind again. And they have NO respect for it. Again, I think this is due to their immaturity.
Moving on, Matthew tired very easily. This is normal for anyone recovering from a stroke. And consideration needs to be given to it. Luckily, we had excellent people at his school (speech therapist, OT, etc) who had this training and were willing to stand beside us at the meetings and back us up.
When it comes to his "short fuse" -- I am about the only one who can through to him at that time. This is more due to my close relationship with him than anything else. And there have been a couple of times when no one could. We take it in stride -- do our best to make sure there isn't a scene. And then sit and talk when he is able to be rational. It doesn't seem fair to his younger siblings though, that I have to keep them out of the way of his rampage. At least, the ones where I can't reach him are few and far between.
I hadn't considered until now that these might actually be an after effect of his strokes. I remember temper tantrums when he was younger that I knew were his inability to control his emotions/frustrations as well . . . but I guess I thought he had healed more than that. I guess that as he has grown the tantrums have simply changed style.
I knew there was a reason I come back here periodically . . . and I am hoping that this realization will make it "easier" for me to deal with him during these periods.
I feel at this point that I have rambled more than provided insight . . .
Kim -- Matthew's mom