Want to get back on the mats...
8 years ago I had around 5 months GJJ training and around 4 months training under a 3rd degree BB until I had to stop due to pinched nerve after being slammed and stacked by a much bigger, newer guy than I was. I almost lost strength and feeling on my left arm and can't move my neck without having that pulling and tingling sensation in my chest and arm. Can't afford to lose my job since I was supporting parents and children, so I decided to stop training.
Get over your self. You are not too old to train. If you have any respect for your training partners, then they probably have the same respect for you. Training without hurting anyone and without being hurt yourself should be your goal.
Get over yourself, the guy said he didn't think it mattered that he was nearing 50, he's talking about a serious injury.
I've learned that a jiu jitsu forum is not the place to get real medical advice. Having said that, I will share some! I am not an MD, but I did have an extruded disc injury in my spine at C6-C7 when I was a white belt, which on the surface sounds like where yours is? I ultimately went under the knife and got an ACDF (fusion). Years later I am fine and training with no restrictions. However, there is no way I would be fine had I not gotten the surgery. I was already paralyzed in my left finger and the nerve damage was only progressing. All of that has recovered. TIFWIW and be sensible. You're not a kid and nerve damage is not something to play with. First thing I would do if I were you is get an MRI and a consult with a spine/neuro specialist.
I am not a doctor but I did stay at a holiday Inn express once.... That said I am 47 and been training for 9 years as of March 2017 and stuff hurts but I haven't had any serious injuries or surgeries in or out of bjj. I do train with a guy that had a couple discs fused and trains heavily and even has had a couple amateur fights.
Yep it's definitely possible to come back from cervical fusion as was my case (to be clear, it's adjacent vertebrae that get fused, not discs), but you have to get a disc injury looked at and potentially surgically or otherwise repaired before nerve damage progresses too far. Professional athletes and fighters address these injuries that way and there's no reason for a 40s/50s-ish year old jiu jitsu hobbyist to do it any differently.