hi charleypops and others, just to let you know my ds1 had seizures on day 3 (after the paed had cleared him to go home) and then spent five days in NICU, with more seizures while he was there. His discharge notes say (among other things) "changes suggestive of HIE on MRI" and of course just like you I wanted to know more and then got myself very worried about it, especially that he might turn out to have cerebral palsy. Well he's now a very active and intelligent 3 year old and is extremely keen on his football classes and I'm so proud of him and it certainly doesn't seem as if he has anything wrong with his brain.
I seem to recall that the time when he was in NICU was horrible. Especially because to the doctors and nurses on NICU seizures were a pretty frequent occurrence, even if they couldn't explain why they had happened. But to us it was our dear (firstborn) son and we just didn't understand what was going on and we just wanted him to be normal. Then once we got home we felt so alone and bereft of help. Of course we were relieved that he was home, but the midwives weren't very helpful and discharged us pretty quickly when they thought I'd got the breastfeeding sorted (which I hadn't) and the health visitor was much worse and I was so worried about him being okay and didn't really know what to look out for in case he wasn't. And every time I took him to the GP's surgery or to see the HV I felt as if I was an overconcerned mum and that they were whispering behind my back "why is that woman bringing in her son again?"
Then gradually I learned to trust my instincts as a mum and although I was happy to have the regular checkups at the hospital I started to wonder if they were really necessary. We've moved house now and haven't had a checkup since he was two and I hardly ever remember about the seizures any more. In fact I asked the paed at the last checkup what we were supposed to be watching out for and as he couldn't tell me I decided it couldn't be very important. (They weren't doing MRI or EEGs or anything, just checking that his development was in line with other kids his age, which it obviously is.)
Just wanted to let you know that the worrying is natural (you're his mum, it's important that you worry about him) and to let you know that just because he had seizures neonatally it may not have any long term effect.
hope my rambling reminiscences help a little