It is of course impossible to diagnose or even guess with great accuracy from a distance and such a problem really needs to be evaluated by a neurologist. That being said, it sounds as though you may have a problem with partial seizures or a seizure-like activity. Especially the concentrating on reading remark makes me wonder if this might not be the case.
I hope you will get a referral to a neurologist and be worked up for this. Good luck to you and please follow up with us here, especially if you have more information.
John Kenyon, EMT, CCT
Non-invasive cardiology tech, Emergency and Critical Care technician, Critical Incident Stress Mgmt. specialist