Why doesnt blood rush to our head on earth?

If earth is circle shaped and we are at the bottem of the earth surely we would be upside down. Soo, when we are at the bottem of the earth and we are upside down why doesnt the blood rush to our heads? If we were to tip ourselths upside down the blood rushes to our head but why dont this happen to us on earth?

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).