 [ Symptoms ] can getting the flu shot raise blood pressure  i have been monitoring my blood pressure for about 3 weeks now and the readings have been normal 11075 but i noticed ever since i received my flu shot from a few days ago my blood pressure has been reading higher 140 150 range85 is this a side effect of the flu shot [ Disease ] even though the doctor says the flu injection can not cause blood pressure to rise i had my second ever flu jab last week and within a few hours i started to feel nauseous and light headed by the next morning i felt much worse i had an oral hygienist appt and decided i would probably be ok to attend after that appt i was feeling so dizzy i went into doctors room in the same building to get checked as did not think i could safely drive home it turned out my bp was highish at 17080 and had dropped to 14490 an hour later the doctor could not find any cause for the raised bp i am 65 in very good health not on any medication have never had high bp before i am sure it was the injection that caused it i came right by the end of the second day i will never have another flu injection