Hi Julie,
I'm so glad it's not MS - but I'm sorry that you're experiencing pain and numbness. I agree with GJ who suggested that you see a spine specialist. And I agree that this chiropractor might just have wanted your business. When it comes to your spine you need to seek the most qualified and experienced medical professionals. Your spine is nothing to play around with - especially if it's causing the problems you're experiencing.
Good luck to you. I'm sure it's a relief to at least know what's causing the symptoms.