I am 48, Chinese male with body weight 86 kg. I have been getting flu like symptons rather frequently since September (September 9) 2014. Similair bouts were experienced in December (December 27) and yesterday Feb 19. In all these cases, the bouts are self limiting - onset of fever which will subside within 24 hours. I am concerned becuase I am used to getting such bouts no more than once a year. Is this increased frequency a concern? I have no known underlying ailment and works out in the gym once a week. I have obseved I react to spices such as black pepper and ginger. A fever will come on but will usually dissappear within hours or sooner if i consume paracetamol.