Mild left chest pain (feels like there is icy hot) and mild left shoulder/arm discomfort. feeling sometimes moves to center chest. feels like theres a lump in my throat (like i need to burp). has been going on all day, ive been in bed. what is it?

You should do a home test for Covid as that is a possibility. Try Tylenol. Good Luck

Monitor your temperature and breathing. Screening for COVID-19 and influenza recommended. Drink fluids,rest and if you experience shortness of breath, persistent or worsening pain, please see acute care. The chest pain may be related to muscle inflammation. Apply a local heating for relief.