I am taking 4 right now, I had a recent bout of low sodium (from eating to much potassium)...just becareful if you have hyperthyroidism...I had low hypothyroidism so I am fine taking this amount. I am actually directed to take up to 6 daily from my Practitioner ( I am on Nutritional Balancing Protocol)...through Dr Larry Wilson.
I suffer high heart rate 120 plus, when sodium is low. Do you check you blood pressure or heart rate when this is occurring at night (the heart palpilations)? The heart rate and blood pressure tells me alot..When my sodium is low my heart rate is higher then 80 usually in the 120's. When my Blood pressure is lower then 112/76 (which is normal for me. If it 80/56 I take extra cortisol, I am on hydrocortisone 10 mg daily now, was on 30-50 mg daily before doing Nutritional Balancing...I do not run to low anymore in cortisol, but still have issues with low sodium, when to hot or eat to high potassium foods.
I would suggest not continuing until you figure out what the reaction is...you may want to read Dr Larry Wilson's about coffee enemas. Are you working with any natural healing DR's. I would think diet is very important too.