Hello Holly D and model Doe--glad you found us!
Model Doe, I don't think that only having the sensations you describe means you have fibro, but if you read what Sherrine suggested, it should give you a good idea of whether you might.
As my doctor said "fibro has a big umbrella", meaning that many many symptoms can fall under the heading of fibromyalgia, but if you don't have pain accompanying any of the sensations you describe, I don't think it's fibro, but do be sure to read the Fibro 101 thread--it's a great place to get a lot of info without having to search for everything.
Holly D, when I have by body humming/vibrations, I only feel them when I lie down, and eventually they go away...I don't have the stop-and-start that you describe, but I know many others do. Let us know what your doctor says when you mention it!
Hope to see you both again, and best of luck to you!