You're most welcome, Orbital.
Another useful tip for concentration is to get in touch with your dominant learning style(s). For example, if you are mainly an auditary (spelling?) learner, you may find, as I do that noises distract you from a task more than, say, visual clutter in a room. I am so easily distracted by noises when I am trying to concentrate. My girlfriend is the opposite - she can work with the TV on (goodness knows how!) but she can't bear working in an untidy room, something that I can easily switch off to. Kind of creates tension, if you see what I mean!
Sorry to hear you are not feeling so well. I hope you get well soon. Take care and be well!
Inchiki