Chest pain/coughing/mucus on chest/ 101 temperature after hangover

So I really fucked up and had 7 shots the on top of that I drink out of a really old bottle of alcohol my bf saved that had a mixture of all sorts of different alcohol.. (rum, four Loko, vodka, beer) and it was sitting outside for months.. dumb idea but I ran out of alcohol so i was desperate for a few more shots.. anywho I had 2 day hangover with a pounding headache, headache went away but now my chest hurts, I’m coughing and feel mucus on my lungs, back pain and a fever of 101.5!

Question: could this be from the nasty old alcohol, normal hangover symptoms or perhaps im just randomly sick after a binger from compromised immune system