I have problems with intense pain sometimes but I've found that going to the ER is no help. My blood work is fine and that's all they will run. It's so frustrating. They won't run CT scans because I've have too many and they're worried about cancer. They always leave me in just as much pain or more as when I walked in. I honestly think they look at me as a drug seeker rather than an answer seeker.
Here's some more information: When I had my j-pouch removed they didn't know all the tissues around my j-pouch had gone bad. Every doctor told me how great my j-pouch was but I could take the pain. I ended up with a permanent ileostomy. After that surgery, my butt would not heal. They would pack it, have a would vac, reopen it, and do drains. I ended up doing a muscle flap and they found I had MRSA contained in that area despite blood results that good. After, the abscesses persist, I had a surgery who was a friend of my brother's try to clean out the abscess. The muscle flap had died and it didn't show up
All this to say, even when blood work is fine, it doesn't mean there's nothing wrong. You have to be persistent. The ER docs see a lot of people that just want drugs. Working around the doctors are difficult. Keep your head up. Some one will figure it out.