Just a few days ago I a pretty good size bruise on my lower back just around my spine there are two line bruises on each side of my spine. I did not hit my back or fall. It did not cause me pain but now that it has been three to four days it it starting to hurt whenever I move at a level 6 or so pain.. what could this possibly be? I m not sure if this could be a effect but I also have been getting sick after each time I eat since yesterday. Not voluntarily.
If I were you I would visit GP or nearby hospital. The condition is getting worse according the symptoms stated by you. It can be kidney or spleen or some other serious issue. To rule out you need in detail examination and blood test.