Welcome to HCM
I understnd your concern.
Very good that you quit smoking
But not enough, you need to follow it up with fruit juices, exercises, leafy vegetables etc.
Your blood and cells in the lungs are contaminated.
Body needs to throw these foreign substances out and it needs your help.
Keping yourself fit and in perfect shape is essential.
Moreover, just don't worry about the aftereffects of quitting.
The symptoms you entered are normal.
For confirmation, consult your gp.