Hang in there Freedom!!!!
Ask your staffing coordinator for an ergonomic assessment of your work area. They are pretty standard and should be happy to provide you with one. They may recommend some helpful adjustments to your work area.
I hope you can stick it out. If it's a large medical center, there will be LOTS of opportunities for you in the future. I would think it's worth it to suck it up a little and get your foot in the door.
No job is perfect and (this is coming from someone who lost her job 3 months ago and is about to lose her house) I wish I had an imperfect one right now.