The Item Duplication glitch:(no thanks to sid0995 or whatever the guy's name was, because I found out this glitch on my own, as well). Have more than one of the same item (that stacks, and preferably 5 or more), and put them in your junk inventory by pressing the Y button. For example, if you have 5 Health poultices, or more, send them to your junk. Next, go to any merchant and go to your junk inventory. Sell all your junk so that it is in the merchant's buyback tab, and then buy 1 of the item. I will use the previous example with 5 Health poultices.
What is a back spasm? A back spasm is a sudden and involuntary contraction, or uncontrollable tightening, of a muscle in response to strain, overuse, weakness, or muscle pain related to injury or a disorder. Back spasms often occur near the spinal cord or near the nerve roots that lead in and out of the spinal cord.
Back Muscle Spasms. Many times back spasms are the result of inflammation or soreness of a particular muscle in the back due to sudden movement at an incorrect angle. Muscle spasms in the back are quite common, even over-straining the back muscles while completing household chores can cause spasms.