I do the same thigna nd am not on medication. mine comes from -

1. trying to type as fast as I am thinking of the reply/post and

2nd I have a learning disorder called Dyslexia where I see things differently like right is left and left is right, the word saw is was, did is bib, q is p and p is q. I love the letter s because big or small left or right upside down or right side up it looks the same not like a different letter. it gets even more comiclal because sometimes the longer words like "sometimes" comes out looking like ssmmeot whatever basically letters out of order. In order to learn how type I cant be looking at the key board, I have to do it from memory of which finger goes where from typing class. I have had special classes for my dislexia but when I am tired my eye brain connection just isnt all there so to speak.

Edit - Point taken look at the first sentence. I wont edit it this time. Now you see why most if not all my posts say - editted by - on the bottoms. lol