Congratulations!!!! You have made it through one of the toughest times for smokers whom quit. But don't let your guard down for one minute. Avoid alcohol in this early stage since it will most likely be your most vulnerable time.
Your body will continue to heal itself, but it wouldn't hurt to go see a doctor if you can afford it about bothersome persistant symptoms. Those symptoms may be a 'pain in the butt', but not nearly as bad as what you will face should you continue to smoke.
Do a simple google search on 'What Happens After you quit smoking' to see the short and long term benefits, but don't fixate on it. You're currently a non-smoker. Don't consume your time with what once controlled your life. Go out and reward yourself!!!
-Eric (3+ years smoke free)