I wouldn't be worried about tiredness considering I've been up for 16+ hours, but the symptoms seem to be going away now. Lungs still loving hurt from the coughing and I keep coughing.
That's good. The reason I asked was because cough, increased heart rate, shortness of breath, and exhaustion are all key signs of congestive heart failure.
If its only down to coughing I would give it some time. About a month ago I had a bad cold and when all of the other symptoms went away I developed a pretty bad cough. At times I was coughing about 5 times every 30 seconds. It was hell but it eventually went away on its own. It took quite some time though...
I didn't feel like going to see a doctor but if the coughing persists and you want a potentially faster fix I would see one.