Hi Dieter,
I am sorry for your PCS troubles. Are you getting better over time? My son has had PCS symptoms since February and is getting slowly better. He takes Mellatonin for sleep 6mg which is over the counter and just double the reccomended dose but neurologist says it is O.K. This has been a great help and kept him from being dependent on something stronger. This syndrome is 3 steps forward and 2 back sometimes and so very frustrating for the afflicted. Keep seeking knowledge and hang in there. Alot of people do not understand it so you can feel alone. The prognosis seems good and is just a very careful slow healing. Stay positive and know there are others out there who are also suffering !! Keep us posted on progress.