I have pain in my chest and into my top and little of my back? i am cold and i have green loser poop?

Check your temperature if you have a thermometer. If you take a deep breath, the chest pain worsens and deep breathing makes you cough, you may have pneumonia, especially if fever is present. If you are at risk for Covid-19 infection, put yourself in quarantine and have the test done. Water or loose bowel movement is a common, early symptom of viral infection, especially Covid-19 infection.