I think it is always best to be honest (and detailed) with your dr. but at the same time you have to stick up for yourself too. If the doctor isn't responding to the information you are providing, tell him how you feel and if that doesn't work find a different dr.
I was having lower back pain and nothing my primary doc perscribed seemed to work. Then I went to pain management. They took "pictures" and we went from one pain med to another then more pills per day. Then came injections with the time between getting closer and closer. It was time to say "that's enough". They suggested I find a neurosurgeon. I did and now for the first time in almost 30 years I'm pain free. Seems I was a ticking time bomb to being a quadriplegic. 2 surgeries later I'm mostly pain free, an inch taller and off all pain meds.
I truly believe in telling your dr everything and also let him/her know when their treatment is not working. If you find they are not listening then it is definitely time for a new doc.
Good Luck and don't give up trying.

kebs