I suffer from anxiety. So I also started working out. Started taking protein, creatine and L-glutamine (5g daily) as a supplement.

After two weeks of taking the glutamine, I had the weirdest panic attack I ever had. I was just laying in bed minding my own business (tho I have been pretty stressed in the past few days) and then suddenly; in body claustrophobia, feeling like my brain was on fire (like every cell was doused in acid), feeling strangely depressed.

Since then I've felt those same symptoms although in a lesser degree. Gets pretty bad before bed (almost the same as before). Also have some hand tremors, brain fog, problems with memory and depth of vision. It's been two weeks.

The only change to my life I could think of were the supplements. So I started reading about it and I freaked myself out.

A huge amount of people had similar symptoms. This person had symptoms pretty similar to mine:

https://www.reddit.com/r/SIBO/comments/ffyh22/lglutamine_causing_anxiety_nightmares/?utm_medium=android_app&amp;utm_source=share

Although this person is obviously freaking out, there are a lot of people and studies showing excess glutamate (which l glutamine is a precursor of, afaik) can lead to excitotoxicity. 

And this perfectly describes my symptoms. For the past two weeks I've been feeling VERY depressed, anxious, can't sleep, can't think, can barely live.

So my questions is:
Did I just have a panic attack and have been tripping out or have I done some damage to my brain?