My 4.1 year old has just started reception. He has known his letters since 3.0 and can read at ORT stage 3 level (his nursery taught him, with us supporting). He knows a fair amount of phonics and can spot sounds within words e.g. ai says A and that kind of thing. However, he has real trouble with symmetrical letters such as b and d. He also sometimes gets to the middle of a word and then starts it again backwards from the end e.g. for cannot he says 'can to'. Have noticed this quite a bit and wondered if this is a common thing at this stage or if it is an early sign of dyslexia? The NHS site specifically mentions b and d as a sign of dyslexia but for 5 years plus. But some of the other signs he is ok with. Not sure if I need to be worried or if there is anything I can do to help him?