PD and back and/or glute pain and surgery

Hello I am new to this forum. I have a lot back issues including spinal stenosis, degenerative disc disease, osteoarthritis scholios bone spurs, degenerative disc disease etc. I was dx with PD in 2013 after at least 2-3 years of symptoms but because I was young (49) and did not have a tremor and I was very active I did not present as a typical PD patient. I finally got a dx from a MDS in Boston at Mass General Hospital. I have been doing very well over these past 13+ years. I have been exercising almost every day until 3 months ago when I had crippling glute and nerve pain in both legs. I woke up in the morning and I couldn’t walk. I had to crawl to the bathroom. After 2 weeks my right side was feeling better but the pain has continued on the left side and after a lumbar X-ray, a lumbar and a pelvic MRI, which I learned of all the above problems, I had meetings with a pain specialist and opinions from my MDS, whom I trust, and 2 neurosurgeons, (one of whom is a friend of ours) I am scheduled for a laminectomy decompression of L4-5 & L5-S1 on October 31st. I also have a diagnosis of gluteal tendinopathy, which is also extremely painful and can cause nerve damage. I am wondering if anyone has similar symptoms and what you have decided to do? If you had surgery, did it help? Do you think PD caused or contributed to your symptoms? I seem to know of a lot of PwP who have had back issues and/or glute pain or tears. Any advice would be helpful.
Thank you CJR