In minecraft, i always put [Pickaxe][Sword][Axe][Shovel] first in my hotbar, if it is not there, i feel like putting them
i crack my knuckles, i crack my back, my neck, even my toes. i have no freaking idea why. i chew on my nails when i'm upset or nervous, or sometimes when i'm just bored. i bite the inside of my cheek (at the moment i have the inside of my mouth bleeding because i just can't stop chewing on it) for the same reasons i chew on my nails. i swear ... a lot.
I've got kind of an issue with my neck & it pops really loud if I turn my head a certain way. I get migraines if it doesn't pop so I do it a lot. It annoys my wife and she's always telling me to knock it off.
My hotbar goes <Sword> (one above it), <Pick> (two above it), <Iron Pick>, <Bow> (arrows above it) and that is how my first 4 spots have to be arranged. Then usually dirt in 7, food in 8 and torches in 9. I guess I'm kind of OCD with it. If I try to put things out of order it just confuses the heck out of me.
Congrats on stopping smoking. I did it, my brother has struggled with it for years. Best of luck to you!
No, man, sword first. Then you can madly type the 1 key when in trouble and start slashing away. Well, and replace axe with a power bow.
racking your bones is actually good for your health. As teh guy said above, it prevents his migraines. Seeing a chiropractor will help alot with headaches and aches and pain.