Soy isoflavone extracts and supplements are available as dietary supplements without a prescription in the US. These products are not standardized, and the amounts of soy isoflavones they provide may vary considerably.
This can sometimes be caused by allergies, infections, and even tumors, but it is often simply something that some people have due to their anatomy (ie, they were born with a pre-disposition to this problem). Sometimes, this clogged feeling in the ear can be a trigger for headaches. As you know, headaches can come on from almost any cause, and some people will have different things that are triggers for these headaches to start. Continued ear pain, hearing loss, and dizziness would all be potentially worrisome symptoms.
Last week in the international medical journal the Lancet, the researchers reported that the women had thunderclap headaches caused by cerebral venous sinus thrombosis - a clot blocking the large vein along the top of the brain. A thunderclap headache was an isolated symptom in 10% of patients with SAH. Any patient who comes in with a thunderclap headache and you're equivocating whether to CT or conduct a lumbar puncture, you never hesitate to overinvestigate that patient because of the early rebleeding risk, he said.