You should see a urologist right away, he will probaly reccomend a IVP, then possibly a Lithotrypsy to break up the stones or invasive removal with stent placement.
But the bottom line these are questions that should be put to a urologist not asked on a message board (This always frightens me to see these types of question appear on a board) your health is much to important be very careful asking medical advice on any message board.
What I can tell you is that stones do not belong in your body (But do occur more often than you would think), but some doctors do let them sit so to speak but they also follow up in regular intervals to see if they have moved.
All doctors specialize in certain areas your general practioners experiance in this only goes to a certain level. If it was my health in question and it has been for the exact same reason in the past I would seek the advice of a competant Urologist in my case I sought out the head of the Urology dept.
I would suggest you make an appointment right away do not feel as some people do that seaking a second opinion will offend your doctor, Number one if your doctor is a good doctor they would encourage you to do so. Number two if they do get offended seek another doctor right away it's your body how dare they dissaude you from receiving proper treatment.
In the mean time drink plenty of water staying hydrated is very important. Go see a Urologist please follow the course of treatment reccomended and ask plenty of questions they are obligated to answer you to the best of there ability.
Good Luck to you, All the Best!