I have pain and burning in my lower back when i first wake up, stand cooking, lifting or i sit for a long period. what could be wrong? im miserable.

What is Cause?: Did you have an injury? Is the pain associated with going to the bathroom or your menstrual cycle? Waking up with back pain could simply due to a mattress that does give you proper support. It is very common to strain a back muscle with every day activity especially if you are not physically active. See your doctor for evaluation and as long as it is muscular-physical therapy would help.