I have heard of some who teach this, but the answer to the question of whether we were angels is ‘no’. In order to believe we were angels, one must also believe God put us into weaker human flesh to give us another chance through Jesus, His only begotten Son. The book of Enoch tears this doctrine down completely. What Genesis chapter six partially explains, the book of Enoch clearly demonstrates. Angels after the fall of Satan and his angels (and our creation also, because according to the ‘angel doctrine’, this is when we fell as angels), found human women to be attractive and married them. These angels included Azazel and Semjaza. After they did this, they were imprisoned inside the earth awaiting judgment. God has already judged them as guilty. As bad as what Azazel and those angels involved with his plot was, the angels involved with Satan’s plot was much worse. Azazel and his angels intermarried with human women while Satan and his angels tried to make him God. God didn’t give Azazel and his angels a second chance, so why would He give the angels who went along with Satan one?