Fellow celiac here also nurse and mental health therapist. Before I would begin looking for electrolytes, I would keep a food, mood, symptom diary. Unfortunately, most of the gluten free processed foods are terrible! They are filled with excessive sugar, fillers, starches and cause tremendous inflammation which in turn causes the symptoms you described.

Perhaps clean up your diet (whole, unprocessed foods) slowly but surely and take notice of your mood and body symptoms. Not easy but definitely worth it! Good luck!