Do rabbits get adhd ?

i know this may sound a little bit strange, but i really want to know if rabbits get adhd or any kind of behaviour problems? My rabbit is a mini lop and he is not like any rabbit ive ever had. He is what some would say "mental". He never sits still and is always on the go, running in and out his tube, jumping , climbing up the cage. He also has a habbit of making a sort of mooing noise or cooing sound its kind of weird and sometimes when i bring him in hes got a weird habbit of rubbing his head all over me? I know hes probably happy but he hasnt stopped since day 1. Anyone know why this might be ? Hes is about 1 yrs old now and isnt nuterd if this helps ...thanks if anyone has an answers as its been annoying me for so long :)