Hello ma'am,
Bad breath could have multiple reasons. It could also be due to underlying systematic conditions or in other words other problems in your body. Please do get it checked by any Periodontist , if u want to see me in particular u can visit the hospital or any clinic of ours that is close to you . You will be alright soon.
Next Steps
Get a professional scaling/cleaning done and visit the Periodontist
Health Tips
it is the method of brushing that matters