I am 27 years old and I was kept up all night last night with severe pain in my stomach and throat. Bad enough that my teeth hurt very bad as well. Just now I passed a completely black stool. Was does this mean...

Can a steroid shot in the spine cause a leaking from the spine? causing severe weakness and trouble breathing?

Why do they put cortisone shots in the spinal cord for pain? Is it dangerous and can it make the pain worse? Can it do damage to my spinal cord? Can I have trouble later on from it? I was in a wreck a little over...