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