Bests & Worsts Reviews from Amazon

I aleays thought Inhad a problem with anxiety. Never thought much f it but it was always there, nothing major but always there, hanging. At some point I started paying more and more attention to it and I realized that it was a problem for me (sweating excesively before meetings, even pleasant ones, meeting new people, etc.) and one day I was looking at a TV commercial (PBS) and there was one Dr. Talking about the different ADD types and one of them fit my "situation" (overthinking things, keep with the same thought for days or months, constanly being concerned over stupid thing, etc) and I started looking what they would recommend to take to manage this situation and found this Gaba thing (i don't like to take medicins at all) and bought a bottle of it. I started taking one pill, then two pills until I felt that tingling feeling and then went back to two pills a day (in the mornings with an empty stomach) I kept taking them without paying too much attention to it abd then one day I realized that I was happy, I know, it sounds stupid, but to me that doesn't happen that often and without reason, I was just happy, great days! I was kind of curious and I stop taking the pills....after a couple of days, the old me came back, every little problem was huge in my head so I went back to the pills again.....happy again....coincidence? I repeated the same thing several times just to be positive about this and now I KNOW when I don't take them, the wife bring them to me immediately in the mornings. I've read about the blood brain barrier and I know that some people said that this does NOT cross it, mine has to be broken or something because this thing is making a difference in my life, not sure why but I would LOVE to know why.