Dear Welcome to HCM We understand your concerns I went through your details. I think you are mistaking with your problem. Dyslexia, also known as reading disorder or alexia, is a learning difficulty characterised by trouble reading despite a normal intelligence. I think you are talking about amnesia. Amnesia is a deficit in memory caused by brain damage, disease, or psychological trauma. There are two main types of amnesia: retrograde amnesia and anterograde amnesia. Retrograde amnesia is the inability to retrieve information that was acquired before a particular date, usually the date of an accident or operation. Anterograde amnesia is the inability to transfer new information from the short-term store into the long-term store. People with this type of amnesia cannot remember things for long periods of time. But, let me be clear, Your present problem could be due to lack of proper knowledge and obsession. You should consult a psychologist to check your memory with the help of several tools available with him. If you require more of my help in this aspect, please use this URL. http://goo.gl/aYW2pR. Make sure that you include every minute details possible. Hope this answers your query. Available for further clarifications. Good luck.