A bit off-topic, but could you describe what your sinus headache was like? I've been having a lot of pain over my eyebrows for more than a month now. I've read

A bit off-topic, but could you describe what your sinus headache was like? I've been having a lot of pain over my eyebrows for more than a month now. I've read that this could be related to a persistent sinus infection/inflammation, and my GP confirmed this could be the case (but then did nothing about it). I don't get much nasal discharge nor anything, just an occasional stuffy nose at night, but still I wonder if it could be a sinus thing.