hi, i have felt as if i am rocking backwad to rock backwards and forwards for some time now.i had a rocking chair for 11 years and used to nod my head to rock the chair.i have now got rid of that chair but my son says i still nod my head even though iam unaware of it. it seems very similar to mdds. do you think the length of time i have rocked is anything to do with this? i also have tinnitus sue