I have been trying to get some help for my 23 year old son as he strongly identifies with a lot of the symptoms of adhd. We have applied for an nhs assessment but it has a 4 year waiting time. I am trying to look for a private clinic to help, but I feel totally out of my depth so could do with some advice please. I'm in Northamptonshire and would need the clinic to be in this area. I'd be grateful for any help