The last 2 months I have been getting muscle jerks or spasms (whatever you call them) in my arms, legs and through my back which makes me jult forward it happens at any point of the day. I used to have them before I was put on thyroxine for low thyroid. I remember one day whilst peeling potatoes my arm julted outwards and the knife went across the kitchen. I have had my thyroid tested again but it's normal. I'm just wondering if it's to do with the gabapentin or is it just one of the symptoms of fibromyalgia . And dose anyone else get them or is it just me.?