Celiac Disease and Oats

Question

Rabbi, I have Celiac Disease and cannot eat wheat, barley or Rye. I can eat Oats. From the FAQ I see that Oats are likely not one of the 5 grains. Could I use Oat Matzah at the Seder as Ie cannot eat Matzah made from wheat? On a related note, I make my own Oat bread during the year. Can I use this bread to say Hamotzee on Shabbat and Holidays? (I generally don't eat the bread during the week).