I smell like feces why?!

Hello guys. I'm new here & I see everyone on here is very supportive and helpful. I am 15 years old and about to be a junior in highschool starting in August. I have been suffering from this since 6 or 7th grade. When people first started asking what was that smell I ignored it and said to myself, "I don't smell anything they are nuts" Then people started to turn their nose up at me. I couldn't smell a thing! This girl I thought was my friend said "it smells like sh*t and period and I know who it is" then she whispered to my friend and they both looked at me. I felt like I just wanted to die. Freshman year I sat next to this boy that talked about me smelling all the time. He even put a sticky note on my back that stated, "i smell like sh*t." I shower every morning. Clean uniform, deodorant, and everything. Why am I going through this? What is this disorder called? Is there a cure/treatment? Will I ever overcome this? I can't smell it myself and I feel that, that hurts me the most. I have to listen in on other people's conversation to make sure they aren't talking about me. Please help! Why do I all of a sudden smell like sh*t? Tweet