It may be a problem with your keyboard.
If you know that your keyboard is working fine, check your controls. Press Esc. to enter the menu, select options, select controls, then check to make sure that they are all what you are used to (usually WASD). Hope that helps! :)
your body wont have energy to move around and organs wont function properly
click where your character wants to go then it will move ok?
Typically this is because the plugin "ModifyWorld" is set so that you (or members of your Permissions or PermissionsEx group) are unable to move.
Re instull Minecraft
Because if they move it will give them pain and then they wont play properly!!
You could push the minecart, although you wont go that far. You can also try powered rails to push your minecart forward.
I have to move my mouse mouse quickly up
you wont believe what it is its 12345
They don't.
you move you'repoptropica character by clicking you're mouse the way you want your person to move
it might be your visa card try email visa and/or minecraft for suport.
Make sure you have bought the game, you are connected to the internet and your firewall isn't blocking java applications. (Minecraft is wrote mostly in java) If you've done all this and it still isn't working contact mojang to confirm that your account is set up properly