My guess is you've got viral bronchitis. An inhaler(albuterol,etc) may be beneficial. Sometimes a steroid inhaler in addition can help. Strongly rec hot showers( am and bedtime),decongestants as needed, Ibuprofen, etc for chest discomfort from cough, body aches, etc. Keep your fluids up as well.
You'll have to decide whether you are sick enough to be seen again. If you are getting worse you absolutely need a chest X-ray.
Sometimes in such a situation you get some bacterial overgrowth due to mucous, etc in the lungs and an antibiotic can help but it depends on your individual situation. I use Zithromax or Augmentin in such situations as well-good job guys.
All in all it will probably take more time. An inhaler will open up your airways a little and help you bring up some mucous, thus relieving some of your cough.
FWIW, I've probably seen 750 people with the same thing you have. It takes about 3 weeks to get back to near normal and pts are coughing some in the AM and fatigued for as much as 4-6 weeks. At least that is my experience up here in the northwoods. I did have it myself as well. No fucking fun at all.