@melissa711 Generally speaking, walking is often recommended by spine surgeons especially after surgery to increase oxygenation of tissues for healing. Your best bet is to try to schedule an in person evaluation from a physical therapist if you have specific questions about what may be harmful in your condition. No one on the forum understands the details of your spine and would not be able to advise you. That needs to come from a medical professional you engage for your care.

What I wrote about doing myofascial release really helped me a lot and my surgery went better because of it. What is did for me was to loosen tight tissue, so it was easier to retract during surgery. With spinal disc issues, there are also a lot of muscle spasms that cause pain wit htension and shifting the spine. A PT can help with that, and it would not prevent treatment from a spine surgeon. When my PT was realigning my neck with MFR and doing the Dolphin neurostimulator, it was blocking my pain for about a week, and this was for a few months before my spine surgery. It may be worth inquiring about that. Essentially, MFR is like a massage except the therapist holds the pressure and waits for the tissue to release. Here is our discussion where you can learn more. There is a provider search at http://mfrtherapists.com/

Neuropathy - "Myofascial Release Therapy (MFR) for treating compression and pain"
https://connect.mayoclinic.org/discussion/myofascial-release-therapy-mfr-for-treating-compression-and-pain/

@melissa711 if you r willing, you could post your imaging results so that we could see the specific which would make guidance tailored to your needs