I Was In A Rear End Collision 26 Months Ago.

I was in a rear end collision 26 months ago. I suffered sever whiplash, 5 herniated discs. C7, T2-3, L4-5. About 1year ago I began experiencing difficulty swallowing certain foods. I have since gone through a series of GI exams most recent. Esophageal Menometry to check for Achalacia. Could this have been caused by the whiplash and herniated discs? The first 18 months I had sever back, neck and leg spasms, now I'm simply maintaining but have this swallowing thing going on?