Thank you very much for contacting healthcare magic. I understand your problem.. Anaemia is reason behind your repeated headach. Please mention your hemoglobin level. Iron deficiency anemia may cause spoon shape nail ,weakness and easily feel tied. .... Low blood sugar level lead to headach problem. If your hemoglobin level less than normal range than start oral iron tablet under doctor s suggestion. For increase your hemoglobin level eat food like beet, khajur, green leaf vegetables....etc. Maintain your blood sugar level. Eat your food at proper timing don t delay it. For constipation problem drink more water and take high fiber foods like whole grains, oats.....etc. Avoid gaseous foods like cabbage, carbonated drinks, cauliflower, turnips...etc. In severe constipation problem psyllium can use. Consent a physician for further treatment. I hope my guidance helpful to you.. Take care. Thank you.