I started using 1,4-Butanediol as a health supplement, hoping to mimic the growth hormone releasing effects of GHB. I used at least 3 grams daily (solution has 9 grams per ounce of liquid) for a period of 6 months with occasional binges on weekends. I found the effects comparable to alcohol intoxication and would indulge in it instead of drinking. I was always very safe and responsible with my doses. I noticed no side effects at all from my use (other than some small stomach pain after binges) until I recently stopped (I ran out and hadn't ordered more. This did not concern me, as I don't consider myself addicted). A few days after stopping I noticed a strange coldness in my feet and fingers, despite 100+ degree temperatures outside. I would also become dizzy often when I stood up. The most worrisome side effect was a nagging pain in the left side of my chest. The pain came and went, accompanied by a racing pulse, often getting so bad I considered going to the emergency room. After about 2 weeks the side effects stopped and I've been completely normal since. I have more now, but have decided not to continue with its usage do to these effects.