 [ Symptoms ] recently had a tooth pulled i am extremely fatigued i do not feel very well i have a severe headache my heart rate is elevated [ Disease ] those who should avoid the flu vaccine include people with a history of allergic reactions to chicken eggs those with a history of hypersensitivity to the vaccine infants less than six months of age those with recent febrile having fever illness although you can be vaccinated if you have a cold or other mild illness without fever people who are known to have developed the rare nerve disease guillain barré syndrome gbs should avoid being vaccinated within six weeks of a previous vaccination