Entire Left Side feeling strange + shortness of breath?

Just a few minutes ago, I've been having this weird sensation in my left arm arm. It's like pain but also sort of numb. I can also feel it in my left palm and also on my lower left calf. My chest is acting rather strange and so does my chin. When i coughed the area where my heart is hurts and I can feel a sharp sensation when I cough. I'm 22 and haven never head any heart problems before so this is kind is scaring me. It strongly feels like my circulation is cutting off. I don't know if it;s because I've been in bed for the past 4 days due to having to stay home because of the corona virus pandemic. Has anyone experienced this before?

if this is your first time experiencing this id call a dr or nurse on call. just to rule out anything medically urgent… then if al goes well this can just be a case of anxiety.