Your problem does seem to be regarding a medical problem. Still scaling must be done every 3 months in your case. Don't be overzealous in brushing. This will hurt your teeth and gums even more.
Next Steps
- Meet a physician asap
- Brush with a soft brush twice daily. Special attention to clean your tongue
- Use zero alcohol mouthwash before sleeping
- Rinse your mouth after meals
- Eat healthy foods
- Get a regular blood check up according to the advice of a physician
Health Tips
This is not an unsolvable problem. only your diagnosis is a bit elusive. Do not lose hope. Keep a mint spray or mouth freshener handy, not a long term treatment but it is just to boost your confidence and help you till the root cause is solved.