A member asked:

While on rowing machine at crossfit, one side of my head began to throb. keeping a constant headache . massage therapist found bb size knot.

A doctor has provided 1 answer

Migraine?: Migraine can start at any age, and any one-sided headache could be migraine (though certainly many migraines aren't one-sided). A local muscular contraction of the temporalis muscle could do it. Next time, check to see if you're clenching your jaw.

Answered 4/15/2014

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