MAJOR Problem Using Left-Click and RIght-Click to Distrubute Items and Other MAJOR Inventory Problems.

In my inventory, crafting table, chests, hoppers, dispensers, (anything you can put and store items in), I cannot craft or move items normally. Left and right clicking to distribute items doesn't work. I cannot take half a stack by right clicking. I forget if this is normal or not, but I have to hold down my left click button in order to items instead of just clicking on the item once and then I am holding it free to move it around my inventory. This also affected creative mode. Very glitchy trying to grab items from the creative tabs. Just please check this out it may just be my client though.