I have the following problem

when i reached 10th grade I found it very hard to read any books. I will read for maybe 30 seconds and my mind will literally fall asleep. I also tend to shake my feet a lot like im anxious and find it very hard to sit in once place and read. since reading is so important in a careeer I have to figure out what th e problem is. I have had add and adhd testing done. Nothing found. I have had a battery of reading tests done and they found nothing too. No dyslexia or vision problems either and im sure i dont have a physical reading problem. But the reason I think they found nothing wrong with my brain is that I have forced myself for 22 years (36 now) to figure out things no matter how difficult my mind is being. here is the symptoms: