Eva,
My entirely non-professional thoughts point toward the Vimpat for the 'psychotic' bit. I had every kind of trouble mentioned here, and some more negative outcomes as well with Vimpat. We obviously all react, or our systems react, differently. One of my problems while taking it was sudden episodes of anger or downright rage and suicide ideation. These drugs are, almost by necessity, psychoactive. Many are actually for Bi-Polar disorder. I was afraid that the stuff I was taking for a number of years (Depakote) would 'level me out', such that I had no personality. My neurologist assured me that unless you actually have all the components in place for Bi-Polar, it would not have that effect. My experience with the various meds we tried runs counter to the assumption that some have. That is that these drugs have no psychological effect. Ask the people around you for an honest opinion on this. Some changes are obvious and some are hardly there, or even appear to be absent altogether. It's an unfortunate price some pay, but it beats Hell out of the alternative!