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I have been put on a preventative med called Sanomigran and it seems to be helping already. It blocks serotonin (or 5HT) receptors in the brain.

Serotonin causes a release of chemicals in the brain which widens blood vessels in the brain. This is what my post concussion headaches are all about, and this explains a lot possibly.

I speculate that the ear ache, sinus pain and tinnitus is related to widened blood vessels, and my migraine headaches certainly are related to this. Goodness knows what other PCS symptoms could have been caused by this? Light and Noise sensitivity spring to mind.

I also feel that my exercise intolerance and fatigue are also closely related to this. My energy levels are up with this medication. I won't be venturing to the gym yet, but I am increasing activity.

I thankfully no longer have severe migraine attacks, and now have a medication that should with time hopefully reduce all headaches.