Doctors just was like whatever...need to see a neurologist.
Glutamate...Excitotoxicity - Wikipedia

And with regards to these fukin horrendous symptoms...depend on the nerves affected. They might include:

Dizziness and fainting when standing, caused by a sudden drop in blood pressure (orthostatic hypertension).
Urinary problems, such as difficulty starting urination, incontinence, difficulty sensing a full bladder and inability to completely empty the bladder, which can lead to urinary tract infections.
Sexual difficulties, including problems achieving or maintaining an erection (erectile dysfunction) or ejaculation problems in men. In women, problems include vaginal dryness, low libido and difficulty reaching orgasm.
Difficulty digesting food, such as feeling full after a few bites of food, loss of appetite, diarrhea, constipation, abdominal bloating, nausea, vomiting, difficulty swallowing and heartburn, all due to changes in digestive function.
Inability to recognize low blood sugar (hypoglycemia), because the warning signals, such as getting shaky, aren't there.
Sweating abnormalities, such as sweating too much or too little, which affect the ability to regulate body temperature.
Sluggish pupil reaction, making it difficult to adjust from light to dark and seeing well when driving at night.
Exercise intolerance, which can occur if your heart rate stays the same instead of adjusting to your activity level.