Caffeine's effects on iron absorption: http://www.livestrong.com/article/427404-caffeines-effect-on-iron-absorption/ http://www.livestrong.com/article/427404-ca

Caffeine's effects on iron absorption: http://www.livestrong.com/article/427404-caffeines-effect-on-iron-absorption/ http://www.livestrong.com/article/427404-caffeines-effect-on... Effects of iron deficiency: http://www.nhlbi.nih.gov/health/health-topics/topics/ida/signs http://www.nhlbi.nih.gov/health/health-topics/topics/ida/sig... Also keep in mind that iodine and vitamin D are easy to be deficient in depending on what you're eating. But I have no idea if that is associated with what you're experiencing. Ask a health care person, someone who will do more than treat symptoms too.