I feel so stupid doing this. I accidentally took my morning doses of medicine at night. I have done that before. Now comes the problem. Next morning I took my medicine. I fill the seven days pill holder. Tuesday and Wednesday I had accidentally put two atenonol 25mg and two jardinex (diabetic med) in my pill box. I took them like I normally would. I have had a headache since. I take Tylenol and it helps for a little while.