Hello, iam 18 years old. and i was wondring, what signs should i look for. and what other things i should do to avoid flue other than the flu shot

about my self
18 years old
Bodybuilder
college student
Take supplement (Multivitamens, creatine, whey)
and Eat a lot of food

now i know weight lifting kind of weakens the ammune system alittle, help me out please :D

Wash your Hands!!!! After using the restroom, try and NOT touch the door handles exiting the bathroom. If you have to have a towel in hand.

Wash HANDS before you eat or prepare food.

ESP wash hands after bodybuilding & try and not to put you hands near your nose or mouth.