EE hit a bump in bus, then when lifting wheel chock complained of back ache. Seen by 3 Drs no findings 1st Aid. Took to Spine specialist, diagnosed 10/09/17 issues w/ L4-5. Submitting reporting upon new Dx from update to injury on this date. No restrictions awaiting MRI results has missed no work. Will start physical therapy 10/23/17. 2/9/18 co. made aware of new restriction.