Maybe some or all of my comments have already been covered in above posts, but here's my take nonetheless:

Go to an orthopedic spine specialist or neurologist. While chiropractors and a GPs are good, you need to get a workup by someone who deals with this everyday. You say you're not feeling quite right. Well, advocate for yourself, follow your gut, and get to a qualified physician who can help you understand the extent of your injury and assist you in putting together a solid plan for returning to a more active lifestyle.

Me:

- Downhill mountain bike crash 30 years ago
- Fractured two vertebrae in lumbar spine
- Herniated two discs in lumbar spine
- Set off cascading events resulting in two reconstructive neck surgeries with a total of 5- level cervical fusion (C3-T1)
- Lived 10 hellish years going to chiropractors, GP, physical therapy
- Finally sought out orthopedic spine specialist after a chiropractor session brutalized me with pain and motor deficit
- Only then found out going to the chiropractor was the worse thing I could be doing because of previously undetermined spine injuries

Point is....skip all the maybe solutions and just go to the specialist now. It may save you pain and unnecessary suffering, as well as unnecessary curtailment to your active lifestyle.

And I do agree with many posting here before me. Cycling can very much help you feel better. You build core muscles that help support your spine and take pressure off your discs. It seems counter-intuitive, but it can, in many cases, help one feel better.