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2007 rear end collision at high speed on the motorway; PCS - main problems are pain in the head and fatigue; tried pregabalin,amitriptyline and HBOT possibly with some slight success; also tried LENS neurotherapy, acupuncture, sacro-cranial therapy, topiramate and manipulative physiotherapy, all with little or no success. Over the years all symptoms have become milder but have not disappeared.