Has this affected my ability to study?

Hi there This my second post since being told two weeks ago I was having partial seizures by my neurologist. As i don't really have any symptons other than being unattentive ocassionally I'm still dubious as to the diagnosis, but hey ho maybe its denial or lack of understanding on my part or something. Anyway my question is, supposing they have got this right and I do have this condition, I want to know how this may have effected my personality and ability to do certain things in the past? I basically have take a route career wise that suits my skitty personality and lack of focus, I left school at 16 and went into sales, have since owned my own business and now work in IT sales, financially I'm okay and new boss extremely supportive. However I probably would not have chose this area if I could concentrate enough to study academically. I seem unable to focus when studying, even when interested in the subject. I realise this could be because I'm a lazy git or just not that bright or determined however I have i think above average intelligence, according to IQ tests anyway and what people around me seem to think. My elder sister is an Oxford graduate (I'm not that clever but we have same parents!). Also when started business I was doing 2 jobs for a year working 7 days per week so I don't think I can really be lazy or unmotivated? What I'm wondering is could this be the reason I underachieved accademically because seizures made my brain tired or unfocussed or something? If so will mdeication change this limitation and make studying more achiveable for me? Does anyone have experince of this or heard of this happening or am I just looking for a positive in this that just aint there!? I wouldn't change my job but would probably start an Open U degree if I thought I'd be able to for my own satisfaction. I look forward to your responses. Justin