Hi I am 28 yr old male and I just quit a mild smoking habit 3 cigs a day for 7 years its been a month and I have had problems ranging from breathing difficulty to cough producing mucus in the mornings and more recently upper back pains on the right side I

Many things. Your symptoms merit a visit to your doctor. Bronchitis, pneumonia or pleuritis are illnesses that need to be ruled out.
See your doc. Certainly you're not suggesting the problem is you quit smoking? It's ragweed season, it's likely you're worse because of that. You could also have a viral upper respiratory infection or other new problem. You need to be evaluated for allergies, asthma, bronchitis, etc. Great job for quitting smoking, it was only going to become more addictive.