Hi. I ve gone through your query. I can understand your anxiety. Your symptoms might be due to the pill you have taken. Postinor 1 has side effects like nausea, vomiting, tiredness, stomach upset, headache, breast tenderness, tender breasts, changes in pattern of menstrual cycle, skin allergy etc. Hope I have answered your query. Let me know if I can assist you further. Get well soon. Regards, Dr. Yogapriya V, General and family physician.