I also have pain in my head when bending over and also when coughing. This has been going on for several months. dr. took me off my cholesterol med. for two weeks to see if that could be the cause. I am still having the same pain. Next he is trying me on an antiinflamatory drug. Sorry you are having this problem but it is good to know that someone else has this. I thought I was the only one. Please respond if you find any answers.