Hi domnack80,
Welcome to the Pain Management Forum. I am sorry to hear about your medical issues.
I highly discourage you from using Sodium Bicarbonate to relieve the gas due to your hypertension (High Blood Pressure). Sodium in any form should be avoided.
Please know that you are always welcome here. However you may find better suggestions in our Gastroenterology Forum as that is their focus.
Here's the link:
http://www.medhelp.org/forums/Gastroenterology/show/68
I also encourage you to consult your PCP. He/she may refer you to a GI Specialist or have suggestions of his own.
Best of luck to you,
~Tuck