Well I have been having these strange tingling sensations which started out just over the left side of my head. I've now been having them on the right side and at the back of my head too. I'm not sure if it's possible that it's E related or not. I'm on Epilim and have been for quite some time now and i'm also on anti-depressants (sertraline) which I went off for about a week (I know not good). So anyway, I am aware that the sertraline effects the epilim and so my neurologist with that in mind, and with checking against blood levels has raised my dosage (of Epilim) since being on the sertraline. So, i'm wondering since I was only on Epilim for a week without any sertraline could that have made me feel this way. I'm currently back on the sertraline and have been for the last 3 days but still not feeling totally well - should I be concerned??????