I have a history of a-fib and had an ablation a few years ago. I ve had a very stressful time and the past few months I ve been having palpitations again, but much milder than before the ablation. However, after they subside I m left with a bit of a headache . I don t know if I should be concerned or not. I have no health insurance and no ability to pay to see a doctor and that adds stress to the situation.