Nearly normal
I am beginning to think that I am seriously autistic as I don't do just one thing but in fact do most of the things already listed here. I do have an excuse however as I am a programmer, a coder if you will and we are supposed to be weird so that's all right then.

My worst trait (or my best) is that I continually multitask by playing a word game in my head that has incredibly complicated rules and depends on finding phrases I hear or see that have the exact balance required of vowels and consonants and can be rearranged to form groups of six letter words that have the 'tinny' consonants and the 'woody' consonants neatly in pairs amongst other more detailed requirements.

At the same time I play a maths based game that requires finding patterns in numbers heard or seen and then running analysis on these numbers in my head and producing mental graphs.
I do both of these games continually whilst carrying out my normal (ha ha! ) life.
I do have an incredibly high IQ but I don't think I am all that clever (I certainly lack any vestige of common sense). I just think my mental games make me very good at IQ tests.
You probably think that I am some sad loser but that is not the case I have a really active social life and loads of fun and friends.
None of whom know about my head games - I have never told anyone (even my closest friends and lovers) about them before.
(Stunt slug If God existed I'd want to fight him, Sat 17 Dec 2011, 23:22, 10 replies)

Good on you I reckon. I'm envious of your ability.
( enoughblueskyforsailorstrousers, Sun 18 Dec 2011, 0:50, closed)

examples
or it didn't happen
(W3BOPLASTY, Sun 18 Dec 2011, 7:37, closed)

examples
The best example I have ever come across is the phrase 'street seller'.

This becomes 'settes reller' in which all the vowels are identical and the first six letter string has all tinny consonants and the second all woody consonants. they are both palindromic too which is a great bonus - did I tell you that I am obsessive about palindromes too? and anagrams and spoonerisms and word riddles...
in fact any sort of puzzles involving letters, words or numbers.
It's sad but true
(Stunt slug If God existed I'd want to fight him, Mon 19 Dec 2011, 0:59, closed)

Consonants
Please explain tinny and woody!
(Frakkus is blowing bubbles in the bath, Sun 18 Dec 2011, 8:56, closed)

K L woody. T S tinny in my head

( Ring Of Fire A petty, drooling belming butthurt retard., Sun 18 Dec 2011, 10:33, closed)

http://youtu.be/T70-HTlKRXo

(Vigilante Man weeps because you're stupid., Sun 18 Dec 2011, 22:25, closed)

tinny & woody
You are spot on with the Monty P reference that was where I got the letter labels from originally, TSKXZVQC are tinny letters whilst LRMNWB are woody letters. There is another group which contains letters which can work with (some) tinny and woody letters these are YDFGHJP.
E and A are the woody vowels whilst I and O are the tinny vowels with U capable of working with either the woody or the tinny vowels.
There are numerous combinations of Woody and Tinny letters that are allowed or barred depending on the distribution of the other letter couplets.
(Stunt slug If God existed I'd want to fight him, Mon 19 Dec 2011, 0:48, closed)

I reckon this isn't so unusual
Lots of people (self included) play pattern games as a background process.

Each one will have different quirks.

Interesting what you say about tinny and woody. I have a slightly bizzare way of 'cataloging' sounds. They're somewhere between Black (deep bass) and white (clear trebble), and in between is shades of brown. I like a mix of black and white, without brown - so in my car for example, bass and treble are cranked right up, but midrange is right down.

It makes perfect sense in my head to call treble 'tinny', and bass 'woody'.
(username failed moderation, Mon 19 Dec 2011, 9:19, closed)

I want this to win, Captures B3ta and this Comp to a T
Click.
(justin(e), Tue 20 Dec 2011, 15:34, closed)

You are definitely not normal my friend,
But you seem to cope with it very well, so I wouldn't worry overly about it.
(Che Grimsdale Best before:, Wed 21 Dec 2011, 15:18, closed)