I've taken 2g phenibut 2-3x a week (with a few breaks of a month or two) for over 2 years without any problems. love the stuff. take a break every few days and there's no problem. never noticed any "withdrawal". that person must have been taking the whole bottle at a time.
Really?
Ok this brings me to another point I wanted to mention.
Every time a phenibut discussion comes up online there always seems to be two "camps."
One camp talks about using large doses, like how you mentioned 2g doses. I've even seen reports of people saying the used 3-5g a day and "didn't feel anything."
The other camp says they never went above 750mg or so, and if they did they got really sick.
So I wonder if there are some massive quality control issues with Phenibut.
The only other correlation I've noticed is that the people who take the high doses usually say they're using powder and mixing it in a drink, and the people who take the low doses are using pills. Did you use powder or pills?
It's really weird. I wonder why it's like that. I would assume all phenibut is the same.