Pain flare-up...

Last week I went to the doctor with a sinus infection and fluid in my ears...he prescribed Amoxicillin...Allegra...and Nasonex...had the same thing in May.  Is it possible for the infection to settle in my joints and cause overall body pain...I have osteoarthritis...fibromyalgia...spinal stenosis and deal with pain on a daily basis but it has been intense for almost a week now.  I try to ignore it and continue with my daily routine, but it has been difficult.  I am discouraged with my doctor...I have gone to the same group for almost 40 years.  I try to focus on only one problem on my visits because time is so limited and I end up "dealing" with a lot of unresolved issues on my own.