wow, without looking up what all that stuff means (foraminal narrowing, osteophytes etc.) Years ago i had electrical type buzzes, mild, when showering as I vigorously shampooed. Later i come to find out i have arthritis in my neck. At some point, a physiotherapist told me I had a pinched nerve,because when I pointed up my thumbs and she applied pressure, one would not hold up. I am in wonder that she knew that, as I can understand how arthritis can lead to pinched nerves through either bone spurs or swelling in the joints. with all your spine issues, I am surprised all you have is mild symptoms. Glucosamine 300mg, Chondroitin 240mg, and MSM 300mg X two, morning and night virtually made my pain dissappear. But would consult your doctor.