My 12-year-old son is in first year in secondary school. He has become highly anxious over the last few months and is now refusing to go into school most days and when he does go, I always get a text by lunchtime demanding that I come and pick him up. He is a bright young lad and has always excelled in school and at sports. I am at a loss to understand why he has become so fearful of school now, but with the fighting every day to get him in, we are all stressed. Have you any advice?