ADHD Assessment in Swansea Being diagnosed with ADHD isn't an easy process. You should first talk to your GP and explain to them the reason you believe you suffer from ADHD. They should be able to take you seriously and refer you for an assessment. There are lengthy waiting times for NHS ADHD assessments, but now you can obtain an independent ADHD assessment in Swansea. RTN Mental Health Solutions offers the fastest, most affordable ADHD assessment that meets NICE guidelines. ...