GABA MAKING MUSCLES BIGGER??

I've been taking this amino acid gaba for a week now and dnt kno if it is working. I get tingling sensations in my fingers and get short of breath when i take it. i usuallu take it with 8 oz of water approx. 30 min before bed. Now this amino acid is said to boost your HGH levels(Human Growth Hormone) now i have an excerpt from a medical journal explaining what it does

"Gamma-Amino Butyric acid (GABA) is an amino acid which acts as a neurotransmitter in the central nervous system. It inhibits nerve transmission in the brain, calming nervous activity. As a supplement it is sold and promoted for these neurotransmitter effects as a natural tranquilizer. It is also touted as increasing Human Growth Hormone levels and is popular among body builders. The published research supporting any of these promotional claims is weak. Current medical opinion says that GABA taken as a supplement does not reach the brain and has no effect or benefit aside from being a benign placebo.

Many websites claim that the neurotransmitter GABA was discovered in Berlin in 1863, which is an outlandish claim. The concept of neurotransmitters had yet to be conceived of. It is more likely that GABA was isolated and identified as an amino acid in 1863. It was 87 years later, in 1950, that Eugene Roberts and J. Awapara discovered that GABA acted as an inhibitory neurotransmitter.

NEUROTRANSMITTER REVIEW

The nervous system is made up of individual nerve cells called neurons. They serve as the body's wiring. Nerve signals are transmitted through the length of a neuron as an electrical impulse. When a nerve impulse reaches the end of the neuron it can jump over to the next cell using chemical messengers called neurotransmitters.

In the central nervous system, which consists of the brain and the spinal cord, neurotransmitters pass from neuron to neuron. In the peripheral nervous system, which is made up of the nerves that run from the central nervous system to the rest of the body, the chemical signals pass between a neuron and an adjacent muscle or gland cell.

Glutamate and GABA are the most abundant neurotransmitters in the central nervous system, and especially in the cerebral cortex, which is where thinking occurs and sensations are interpreted."

http://www.denvernaturopathic.com/news/GABA.html

Now im looking for people who may know of anything related to this or people that have used this and have seen results.I searched numorous articles and websites and have found that it increases HGH by 2x or 5x depending how much you take.It is said that u max out the effects of the amino acid at 18g and that seems really high.I take dose of 3g every night.well thats all i have to say please any one with help on this is apreciated