Not enough information to answer safely.
A Blood Pressure of 67 makes no sense, as there are 2 numbers.
For example 150/90
The top number is the Systolic pressure, the pressure when your heart contracts.
The bottom number is the Diastolic pressure, the pressure when your heart relaxes.
Depending on many factors a bottom number of 67 may be very normal.
For example if you are a small elderly woman 67 would not be unusual.
Young athletes in excellent physical condition also have lower blood pressures.
I don't know why you went to the ER.
Nothing you have said so far indicates there was an emergency.
Were you having serious symptoms, or were you merely anxious and checking your blood pressure (or your pulse) by yourself.
I am wondering however if you mean pulse, i.e. heart rate, instead of "blood pressure".
A heart rate of 67 again might be very normal and not need to be changed.
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