Left mid back hurts up to shoulder blade when i bend over or stand up sharp stinging pain ?

Muscular Pain: It seems you have pain in the muscles either due to strained muscles or an inflammation in the muscles.You need to take a combination of non steroidal pain medication arond the clock like naprisyn 500 mgm twicw a day or Ibuprofen 400 mgm every six hours.And muscle relaxants like cyclobenzaprin 3 times a day. So check with your doctor and find out exactly what you need.