What is considered a “smell” in the Hadith. Should we be sure that it’s a smell that is related to gas? I always have feelings then think to myself “do I smell something? Is this gas?” I’m usually sure it’s not gas but have a doubt that there is a chance it could be. What is the guideline for this?

Ustadh AbdulAziz al-Haqqan

Seek out medical help regarding waswas.