Sir in your case need oral prophylaxis because when bleeding on brushing it means gingival swelling due to deposit. Foul odour is also a symptoms of this problem. In advanced stage sensitivity and gum recedes, mobility of teeth. Advanced stage known as periodontitis (Piarrhea).
Next Steps
go to dental clinic for oral prophylaxis.
Health Tips
warm saline rinses for every 2 hours will give you a better results.