write a letter of apology to the teacher to explain why you

My dear teacher, I am sorry for being so late yesterday。On yesterday morning ,I did not feel well,my haed was quite ache,I feel dizzy,OH that is terrible。Then I told it to my mother,then my mother sent me to the hospital ,and the doctor examine me carefully, he said I need a good rest。 Next time if I am ill,I will phone you first and do not let you worry about me。 sorry teacher 。 Yous,XXXX