extreme muscle pain

Kristina

so I have had a horrible cough for over a month now that won't go away. it got to the point where I pulled a muscle in my side from the coughing. last night my whole body tensed up and I couldn't move, sit, stand , lay down or breath that's how bad it got. is there anyone else have this issue and if so how do I get these muscles to relax so I can get back to work