Hello,
I do not believe that you are not paranoid.If you are having wierd glances..people are sniffing when you are around,and are giving you wierd looks you SMELL. You might have fecal odor,Sometimes it comes and goes.Your classmates might not be telling you the truth because they do not want yo hurt your feelings. Many people have this condition and please do not contemplate on commited suicide, I believe a cure will be here to help us get rid of this condition .