I don't have much time but I didn't want to leave everyone hanging.
To make a very long, very frightening story short we've had quite a health scare with Itai after he starting having debilitating headaches and complaining of double vision after a minor illness a few weeks ago.
Two visits to the pediatrician, two visits to eye doctors, an entire morning at the specialty children's eye hospital (after they had us jump a 6 month queue to be seen right away), one MRI (again, you must jump the queue and be seen within the week) and one visit to the head of pediatric neurosurgery at a leading children's hospital (this afternoon) later we can now say conclusively that he is completely healthy.
He apparently had some form of viral meningitis which has now resolved, which is what caused the headaches and exacerbated the vision problems. He's also got the same weakness with the muscles in his eyes that I have, which is what caused the underlying double vision, and will most likely have to do eye exercises (as I did for years as a child). We'll find out at our follow up visit to the eye hospital at the end of March.
Most importantly and overshadowing all else though, he is FINE. His brain is FINE. There are no lesions, tumors, or anything else that there shouldn't be. There is, to quote the neurosurgeon, absolutely no cause for concern.
God I'm glad that's over.
Thank you everyone for all the support and virtual hand-holding, even without knowing what you were supporting. It meant a great deal to me.