How can you tell the difference between bad breath and odor from your tonsils?

Not by smell alone: Infected tonsils smell. Bacteria between teeth that's not removed by floss smell. Bacteria on top and back of to get smell, as does infected adenoid, infected sinuses, food debris & bacteria rotting in gum pockets, gastric reflux, and so many other causes. Your General Dentist and General Physician may have to collaborate to help you solve your halitosis.

Halitosis: Bad breath can be caused by many different factors, including sinus infections, tonsil stones, periodontal problems, smoking, cavities, acid reflux, and your diet. Address all of these possibilities with your dentist and physician, and I'm confident that your problem will at least be minimized, and hopefully eradicated.