Dyslexia still lingers in me?

My mom said when I was a kid I used to write all my p's and d's and some other letters backwards. She said I probably had dyslexia but nobody ever diagnosed me with it or anything. I remember I used to write the letters that way because I didn't think it mattered which way they went lol, like I don't remember seeing them funny..I just chose to write them like that because I thought it didn't matter. This habit went away though. Years and years later ...(like 15 years later) I was looking at a sentence on the computer and was really tired and it read something like "Tor Enhwld sde yiwt uoh" ...like it made no sense...I thought it was just a link code thing or something in another language....but when I looked at it about 10 minutes later it said a normal english sentence. Somehow my brain had mixed up the letters...and I think some where backwards too...Could it be that I was just tired or was I really once dyslexic?