I skipped lesson?

This afternoon, I went home without attending the 2 hours Physical Education lesson. Several hours before the lesson starts, my mind was extremely "struggling" about whether to attend or not, due to the only two reasons.

The first reason was, I had somehow a phobia against ball as I had been hit by a soccer ball, if I am not wrong, directly to the face. Nobody knew this as it was kept in the deepest of my mind and nobody seemed to understand how I felt against this matter. Even if I tell someone, he or she may forget it. Therefore, I would not dare to tell anymore, be it my current PE teacher or my classmates, because I am fear of being laughed or teased. Under such circumstance, I felt terrible or rather miserable in my mind when PE lesson starts.

Second reason was, I do not have my best friend to "lie" on when I meet any difficulties during PE lesson. I could remember, whenever I have any negative comments against the things done by PE teacher, I would pour them to my best friend. Now, he is at the another class, I could only pour them to myself during the PE lesson.

Therefore, I do not really meant to skip any lesson, or pretending to be sick. Do understand me, please, be it my teachers or my classmates.