My 17 year old has been experiencing anxiety for the last 9 months or so and has been having panic attacks. He told me today he has started having them overnight. He has a referral for CAMHS but the appointment isn't for another 6 weeks and the Dr has prescribed anti-depressants etc. which seem to help a bit but the overnight panic attacks are a new thing and I don't know how to help him. He is doing well at school and amazingly his grades aren't being affected and he wants to go to university and can see this in a positive way. I just don't know what to do and I am very worried. I feel very useless and that I am letting him down.