Well seek medical help!!!
I have been an emt for four years and just this december i have had a back injury and i have not worked since. Most days I cant get out of bed. Physical Therapy helps. ie..muscle relaxers and pain meds (but that is not a cure all). I love my job as an emt but my days on the truck are pretty much done. SEEK MEDICAL HELP is my advice don't wait it wont get better on its own.