It is a helpless feeling.....27 is incredibly low.
When Rebecca was 9, she had a seizure at 4 am while staying with me (single parent). I checked her BG and it just said LOW...did not even register. I squirted cake gel into her mouth and thought she was feeling better a couple of minutes later, just to find that she had quit breathing, was grey, and her eyes were rolled back in her head. As I picked her up, she went into convulsions.....lips sucked back into her mouth, fingers and toes curled in....etc. Talk about feeling small, it was just me, her and God in that room that night. I am not a practicing Christian, but believe in God, and called out to him for his help that night. I started talking very loudly to Rebecca, telling her that she needed to breathe with me.....then started doing the Lamaze type of breathing technique. Rebecca started coughing and breathing again. I gave her a glucagon shot, which brought her up to 107 on her BG, then took her to the ER. She didn't remember a thing about it, but I swear, I aged 20 yrs that night. We went on the pump right after that episode.
As young as your son is and having to deal with this, I am sure you have had your tough battles too.
It still amazes me at the number of people who don't understand what Diabetes is all about.