I rarely get sick but one Xmas the day before Xmas eve I got the flu. I had it for 3 weeks. I couldn't lift my head up from the pillow, just slept & slept. I couldn't eat & was so low I kept on crying. I was self employed at the time so lost so much money. I ended up with sinusitis & was deaf in one ear for a week. I think if I had been elderly I would have died. It took me months to feel better after that flu.. In 17 years since then I have 2 colds & 1 mini flu. I just don't get sick. I have had migraines but I know my triggers certain foods & not enough sleep. I can cope with the head ache but just hate the nausea.