ADHD
Contrary to popular belief, ADHD doesn't mean that your kid is jumping on furniture. It can mean that are very easily distracted or that they find it hard to stay on task.
About ADHD and ADD
About ADHD and ADD
It's not uncommon for kids with autism to be diagnosed with ADHD first. This is because many of the symptoms of ADHD can also be present in autism, albeit for different reasons. For example, "Restless legs" are an ADHD symptom but knee-bobbing is a common autistic stim.