Doctor's Orders

I took the dreaded glucose test this last week and got a call from the nurse the next day. Incidentally my glucose level is high and although I do not have gestational diabetes my doctor has decided to put me on a diet. To be honest, I feel a little surprised. Is this pretty common? First off, who wants to hear that a health professional is recommending a diet to them, especially considering that a month ago I was a bit reprimanded by him for not gaining weight. Secondly, I've only gained 9 pounds this pregnancy.(I know it is healthy for me to gain much more than this, but not sure how) I'm more than wiling to stay away from sugar if it is best for my little one. These last couple days I've been a little paranoid about what I put in my body. I go in on Monday for more information and (much needed) counsel. Wish me luck!