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So I've ben running for 18 months and my training is going really well. However since I started running 5k and 5 mile races and now this week doing shorter intervals (0.5 mile * 4) I've been suffering migraine attacks almost every time I go under 6 min miles.
I've now had them during two parkruns, after I ran 5 mile race in 31:17 and last night during all four of my 0.5 mile intervals at just under 3 minutes for each one (really one long attack I suppose).
Anyone who has suffered will know that after the attack you then suffer for about the next day so this is more than inconvenient.
I'm guessing this is something to do with blood flow to the brain being disturbed by what my body must feel is extreme effort - so I am wondering if I persist then will my body get used to this speed and maybe I would only get attacks at say 5:30 min miles?
Has anyone else experienced this and can they tell me what happened to them/if their migraines improved?
I've been to doctors and opticians and there is nothing wrong with my eyes/blood pressure.