not well today

I have taken off today. Since I am not feeling well today I could not carry on with my work. Today I have to give seminars to few set of students and then visit a college near my area to give them awareness about the importance of insurance. Also, I have to inform my boss and senior manager about my company’s improvement this month. But I could not do any of this because of my health. I am tired and I have fever, I have informed my manager about my condition and asked him leave today.