i have just ran about 800 meters and i pushed myself  over the limit. my hart is still beating fast after 1 hour. i ate some food and drank 3 bottles of 600mill 2 clod one room temp. can u please help me i need 2 know what 2 do now i will try 2 c a doctor but i am at school now and i do not know if it is bad.
Hello, I understand how you are feeling. It could be scary to have a feeling of a fast heartbeat. It is normal for the heart to beat fast after physical activity. As much as exercising is good, you should avoid over stretching the limit your body can go If for example you usually run 400 meters, it is better to gradually ascend to 500 or 600 meters before getting to 800 meters this way you can avoid injury and exhaustion. Warm regards