What about lactose intollerant?.. re: his stomach problems.
Or .. he just feels pressured to write in a busy, distracting classroom. One of my kids had a classroom with 4 behavioural problem kids in it. Sheesh.. the teacher couldn't even pay attention for 5 minutes let alone any of the other kids. Chaotic class...it was awful! 31 kids in grade 1 and 31 in grade 2.. that's crowd control not teaching.
I used to encourage one of my kids to bring his creative wrting work home where he could write without distractions of all the other kids.
And one of my kids I asked to have moved to the front of the class. Less distractions to be watching around him.. that helped.
My nine year old has just begun having to write a sentence with each of his 10 spelling words. He was floored!. I can't do it! I can't think of anything..on and on.
So, I sat him at the table and let him get to the point where he feels sad and cries for a bit. After that he gets mad and writes a couple of simple sentences on a piece of looseleaf. I tell him you can make as many spelling errors as you want and I'd help him straighten them up later for his good copy for the teacher. (Break Through, Nina!! I hit a breakthrough!)..
I notice that he is a pacer. Walks the floor when he's on the phone just like me, his mom, just like his grandfather sooo.. I say, Why don't you get up and walk around while your thinking of a sentence.. and boom.. break through! break through! and he's writing and laughing about some of the super long adventurous sentences he's writing and how much the teacher will like this one. I think one sentence was about driving a monster truck..on and on.
Then we go through his rough copy of sentences and talk about spelling errors and tricks to straighten them out, or how to substitute some words that he does know how to spell. etc. He's a Happy Kid now.
Hey, it all may sound silly to some people .. but it's working for my guy.
Special K