Thanks for your input.
The most common causes of these bright spots are the following.
1. Infection of the bone called osteomyelitis.
2. Primary bone tumors
3. Metastasis from some other site.
If you are sure about the last two , as you said, then we are left with the infection only. Your doctor is very right yes this called be a bone infection or inflammation. Bone scans are sensitive tests for abnormal metabolism but are not as good at identifying the cause of the abnormality.
Bone scan results are interpreted along with symptoms, X-ray results and medical history. In addition, other tests such as computed tomography (CT), magnetic resonance imagining (MRI), blood tests or a biopsy may be needed to help establish a diagnosis.
You should see an orthopedic doctor and get further tests done to reach the cause of these spots with subsequent treatment. If you are not taking any pain killer , you can take OTC Tab Naproxen twice daily.
I hope this helps you.
If you have anything in your mind, please ask,