Sorry Toffeefudgecake
You are confusing what causes the dyslexic symptom with dyslexia itself.
Issues of poor working memory,www.citeulike.org/group/5806/order/year,, www.citeulike.org/group/13873/library/order/year,, or short term memory, can be contributory causes of the dyslexic symptom.
And it is Visual Processing deficits and / or Auditory Processing deficits which are the main under lying cognitive causes of the dyslexic symptom.
Sequencing issues are related to auditory processing deficits or disorders,www.citeulike.org/group/12655/library/order/year,, www.apduk.org which have more serious symptoms that just dyslexia ( having problem with reading writing and spelling)
Again having problems remembering the says of the week etc are working memory related issues and not dyslexia. dyslexia is not a medical or cognitive condition, dyslexia is only a symptom of one or more cognitive deficits or disorders
For most www.citeulike.org/group/12693/library/order/year,, Developmental Dyslexia is a genetic issue, Alexia or acquired dyslexia www.citeulike.org/group/13563/library/order/year,,
It really about reading the related research papers from the last decade or more, that you can begin to understand the real issues which the UK Dyslexia industry would prefer you did not know about.
All who have been diagnosed as having dyslexia as a learning disability need to discover the medical or cognitive disorders which causes their dyslexic symptom.
Dyslexia is a genetic issue, and dyslexia is mainly inherited from one parent or the other, even though they may not yet be aware that they have dyslexia because they have become so good a coping with on a good day. The real problem is when the coping strategies do not work so well if at all on a bad day.
I am dyslexic, and I have a clinical diagnosis of the cognitive disorder which causes my dyslexic symptom. I was not diagnosed as being dyslexic until i was 45 years old, and the cognitive cause of my dyslexic symptom was clinically diagnosed when i was 49 years old.