It's really hard to say. It could be unrelated to your surgery; for instance, it could be restless leg syndrome. I assume you have a neurologist that you see periodically? I would mention this to him or her. Since the symptoms occur mostly at night or while resting, you might end up being referred for a sleep study. If you have been released from neurological follow-up, or if your next neurology appointment is a long way off, then I would talk to a primary care doctor about it.
Won't see Neurologist for 8 months so I will make appointment with GP, just worried it is seizure activity. I have just got my driving license back, don't really want to have to taken off me again, but nonetheless do not want to chance anything
I can understand why you would be concerned about seizure activity, as you just went through treatment for a brain tumor. A lot of people have this kind of symptom who don't have seizures, though. It's an excellent idea to go ahead and get it checked out, and put your mind at ease. If you care to post back, we'll be interested in hearing what you find out.
Thank you very much, I will do that