This Morning, For The Second Time In About A Year,

This morning, for the second time in about a year, I had extreme difficulty reading.... It was as if, I no longer understood phonics. I felt fine both times, but could spell a word without being about to pronounce it. I could speak fine, do anything else and felt time. The first time I just laughed it off as being tired, but the second time has me wondering. Both times the symptoms lasted around 10 minutes.