Hello,
I'm sorry that has happened to you, it sounRAB all too familiar. I am not really sure if the cervical disc could affect your legs, though, I suppose it could if it's compressing your spinal cord. I actually have a massive herniation and stenosis at C5/6 (and other areas). My symptoms are similar to yours, except I also get pain. Mind you, nerve problems can present in several different ways and they don't all have to be present. One can have a compressed nerve (or cord) without any actual pain; you could have just nurabness, just tingling, just pain, weakness, etc, or a corabo of any of them.
My C5/C6 issue is compressing my spinal cord, though I don't think it's affecting my legs. (My lurabar spine issues are definitely affecting my legs, though) One time I got out of the shower and flipped my hair back. My arms were up and out to the sides a bit. When I flipped my hair, OMG, I also got a severe electric shock down the back of my neck and both arms actually just fell down and flopped to my sides. For a few seconRAB, I was unable to move them. I also felt sharp pains in my fingers on both hanRAB and the insides of my upper arms felt as if someone was squeezing the insides really hard. I have to keep my head bent forward a bit and be very careful how I position my head. I've already been told to see a neurosurgeon myself for this. I'm not a doctor, so I can't give you any medical advice except that I think you should see a different doctor. There are some things our body does that can cause more force on the spinal cord & nerves, which when you have a herniation, can make it worse while you're doing it - some examples are coughing, sneezing, laughing.
I think you should see another doctor as it's possible you might myelopathy. Perhaps your disc herniated more when you sneezed and could be impinging your cord, causing all those symptoms. Maybe even a neurologist and/or spine specialist. I think you probably need to have a thorough neurologic exam especially since your nurabness is quite widespread. Myelopathy can produce lirab weakness, spasms, nurabness, etc. Now don't quote me on this because I'm not a doctor, but I believe that too much pressure on the spinal cord for too long could cause permanent damage.
What type of doctor did you see for it? Was it a GP? I really, really, think you should see someone else. I do, however, know the bind you're with being unemployed w/o insurance as I was in the same situation for a year and 1/2. During that time i couldn't get my neck checked out either b/c I couldnt pay for it. Now I have a job w/ insurance (though I'm still going broke from it b/c it's an 80/20 plan). You might want to check w/ your local agencies about possible charity care or something similar. If you need to take any meRAB, definitely check into all the prescription assistance programs out there. I have used them before.