A friend, Bryan Strohm, suggested the following treatment. In my case it kicked off a migraine because mine are caused by constriction of the veins, not expansion as with a lot of sufferers. Anyway I'd be interested to hear back from anyone who tries it with positive results (Sambucol can be obtained from Holland and Barrett, plus possibly Boots in the UK). Bryan's email address is bryanstrohm@hotmail.com, for anyone wanting a follow up consult.
The more acidic/sick your digestive system is the more gas you'll have; this is directly due to the acid-base reaction from the baking soda. It's not harmful at all, it's just part of the process. You may have diarrhea too but this is just cleaning stuff out.
I must also mention that if you mix the baking soda with Sambucol and you have significant internal infection(s) (as I had due to my years of breathing toxins as a general contractor), then the cleanout process will leave your previously infected areas/organs sensitive to things like caffeine, aspirin, alcohol, and salt. So you should really avoid those things for a couple days after taking the blue enzyme. If you used to consume much of those things, then you probably had a build up of stuff that desensitized you to them, and the enzyme will remove that blockage. Once re-sensitized, those things could easily cause a rise in blood pressure, as I experienced.
I recommend taking the enzyme in the late afternoon, then be sure to eat a large healthy dinner. That night you should lay in bed and meditate on your body and you should really feel a clarifying tingle where the enzyme is attacking, neutralizing and purging toxins. For me it was like a curtain was being lifted and I could suddenly "see through" my body with my mind. I felt it significantly enhanced my telepathy too.
Baking soda alone is great for the digestive tract, but it is not able to get around your whole body without bonding to the Sambucol. If you take the enzyme just once, then it is not a big deal to take just the baking soda weeks or months later as minor system maintenance, or for periodic indigestion.