Hi i have pain in the right side of my back had it a few weeks gets really sore at night to the extent i cant turn round iv started to run to the toilet more than usal this only started last night and when i bend i get a sharp pain in my back on the right side also
It looks to me that you are having acute back muscles spasm. I would recommend you to take muscle relaxant like Moral or MySpace for five days along with Diclofenac gel application at back.  Also, you should avoid bending forward or lifting heavy weight.