my friend fell ill

Hi,

Can you please point out my mistakes in the following paragraphs?

My friend fell ill the next day after taking a test. Maybe the test was so difficult that she thought of it the whole night. I told my teacher about her illness. He asked the whole class to pray for her. The next morning, she came happily and told us that she thinks she was never ever ill. It was all because of the prayers.

My friend fell ill the day after taking a test. Maybe the test was so difficult that she thought of it the whole of the following evening. I told my teacher about her illness. He asked the whole class to pray for her. The next morning, she came in happily and told us that she thinks she was never ever ill. It was all because of the prayers.