Sir, From your question I understand that you have PYORRHEA ( Periodontitis ). In Pyorrhea there is loss of bone between teeth, bleeding from gums, deposition of calculus and stains, on teeth surface and between gums ans teeth, food lodgement between teeth, spaces between teeth, receding gums, loosening of teeth, mobility in teeth/tooth. Any one or few signs fall under Pyorrhea.
Next Steps
Visit a nearby dentist and get is diagnosed. You must have to get your teeth cleaned (Oral Prophylaxis) and/or other procedures like Root Planing, Bone Graft etc as suggested by Clinician.
Health Tips
Don't take it lightly, otherwise you might loose your tooth/teeth.