What Do I Do To Get Over Magnesium Citrate Overdose

What do I do to get over Magnesium Citrate overdose I stopped taking it about 3 days ago and still am having nausea, no appetite and generally feeling crappy....was having night sweats and difficulty sleeping, that's a little better now...my husband got it for me thinking it was the same Magnesium I had been taking to ease muscle pain associated with fibromyalgia