"nudnik child'

I just received this email from a mom, and I am wondering what all you moms out there can add to her 'toolbox' for healthy family survival?

Dear Slovie,

I have 4 boys and my second son, 10 years old, always has a stomach ache. I took him to the dr., who did all the tests. He says he is fine but needs more attention. I find that the more attention I give him, the more he becomes a 'nudnik'. This past Shabbos, I felt as if he squeezed the air out of my body. I wanted to cry. he drives me crazy. i am ashamed to say that i almost hate him! What can I do to fix this?