Wonder if anyone has noticed adverse reactions to the flu jab in alzheimers sufferers? My mum had the flu jab, and ever since she has been suffering from what looks like narcolepsy. Before the jab, she was confused but healthy and active. Since the jab, she can't stay awake, if she sits on a chair her head lolls forwards and she is asleep immediately. I have heard that Pandemrix was suspected in cases of narcolepsy in the young and is not prescribed for under 18's, wonder if any similar side effects noted in the elderly for this or other anti-virals.