It is important to address your symptoms with a medical professional. Persistent headaches and palpitations can be caused by various factors, including stress, lack of sleep, and even underlying health issues. Keeping a journal of your symptoms can help your doctor make an accurate diagnosis. In the meantime, over-the-counter pain relievers like Tylenol or Advil may help with your headaches, and you could consider trying melatonin for insomnia. However, it is crucial to consult with a healthcare provider for a comprehensive evaluation and appropriate treatment.