Coughing a lot! Is this normal?

So around March I went from never smoking at all to smoking every night (from a pipe, no tobacco) and a few months later, smoked several times a day (again no tobacco). Since about october I've had a pretty heavy, pretty obvious-sounding smokers cough, am particularly phlegmy and tend to get a sore throat more often than usual (not really a problem though). None of this bothers me per se but I'm wondering what it is my body is telling me to do. I'm in the process of cutting down to one bowl a night (and once I'm used to that again, once every two nights or maybe less (I use weed to treat my anxiety so cutting out all of a sudden does not work)) and I hope I see a difference in coughing/phlegming but I'm not sure. I figure this might be a common topic but I did forum search first, but most of the threads were too specific (coughing up blood etc - I don't have those symptons).

So is this normal? Should I be worried? Will cutting down help? Is it worth seeing a doctor at this point?

 

I should add, its never a painful cough, mostly just the product of too much phlegm. It's more like a cough to clear the throat of phlegm, although there is definitely some irritation too though...although the cause could be excessive coughing, not the smoke.

 

Thanks.