Hi I am being tested for ms, due to have an mri scan next week, I do have fibromyalgia which is sometimes mistaken for ms but I have headaches and dizziness etc, my question is to anyone with ms is do you have buzzy sensations like electrical shocks in your head and body, I also feel like I am in a lift and the floor moves and I loose focus, the reason for asking is that I am still panicky about the suggestion of an mri, I know realistically a brain tumour is really rare but these strange symptons are worrying. I have just had a test to check my hearing and they said if is not ear related. Just need reassurance I suppose.