What is the cause of pain in the back of the head during exercise?

What is the cause of pain in the back of the head during exercise?

I began to go to the gym, I practiced calmly for 3 weeks, and on the fourth I started having throbbing headaches in the back of my head, even with a small load. After 10 minutes without physical activity, the pain disappears. Who can I contact, have you encountered such a problem? Thanks.

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Why do they say everywhere that you need to walk at least 10,000 steps a day?

Why do they say everywhere that you need to walk at least 10,000 steps a day?

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