Im nervous about my cold, just wondering if this is normal?

I have a bad cough, been coughing up a ton a phlehm for 3 days now, when I woke up this morning, I noticed when I cough, my head just pounds with pain, like a migraine i guess.. and it also feels like I can barely breathe, like theres a lot of pressure on my chest.. I took some cold and chest congestion medicine.. so just nervous, never had a chest cold like this. Thanks