Hcl Betaine - dosage

hello everybody. I am suffering from acid reflux 5 years now.

I feel I cant breath in the middle of the night, i have enormous pain in my stomach, but worst symptom is thick, foamy, saliva which runs all day and makes me crazy.

After some time I couldnt believe that I maybe found solution.

I tried concetrated apple cide vinegar and literally in one second, like magic, i felt blood in my veins, my mind "woke up" and all saliva , and all pain dissapeared. Problem is that vinegar is not permanent solution , and same days I feel great some time not.

I deeple believe that acid reflux, at least in my case , is caused by low acid. But i would like to try HCL Betaine which is not too strong. As example i would to try with 100 mg ?

Can you give some advice, where to find lower HCL betaine capsules.

god bless you all