 [ Symptoms ] how long does it take for symptoms of a concussion to occur i have had previous concussions in the last year or so and i slammed my head during practice on the floor i immediately got a headache and a bit nauseous the next day i am feeling dizzy and my balance was off and foggy but the day before i felt fine my coaches said i looked fine and to rest is it normal to get symptoms days after you hit your head [ Disease ] hi i can see nothing do u take vitamins are you a female possible metalic taste with pregnancy 