it may be possible but it is unlikely that the flu vaccine caused an elevation in your blood pressure. according to the cdc the following potential side effects can present themselves after being administered the flu vaccine: redness and soreness at the injection site; low grade fever; and aches. it is a positive step to routinely monitor your blood pressure. the 150/95 reading would fall into the marginally high range and should be confirmed by a medical professional over the course of 2-3 office visits. until you see the doctor i would take my blood pressure every other day at different locations and at different times of the day. record the data and what your activities were engaged in prior to the blood pressure testing. with this technique you'll account for a defective machine and different activities and different times of the day which can influence the reading. show your journal of activities and b/p readings to your doctor in order to gleam patterns associated with your b/p numbers.
i have always had normal bp since i got my flu shot 3 days ago my bp has been 150/95. can the flu vaccine increase bp?