ok girls i need help bigtime!! i think i am going mental.. either...

ok girls i need help bigtime!! i think i am going mental.. either that or i have a tumour in my head!! ive been off yasmin for about 6 months..... wasnt on it for long because it gave me heart palpitations and made me so anxious its not funny... thats been taken care of now... but this month i have got these funny feelings in my head... its relly weird. sometimes if i turn my head one way i get like a 2 second head spin... kind of like when you smoke a cigarette that is too strong for you. anyways my whole head in general just feels totally stuffed... ive read a few other ppl experienced this but is it normal to feel it after 6 months of being off this pill??? shouldnt my symptoms be getting better not worse! im really scared that something is going on in my head that could be fatal.... any help would be so appreciated!! worried !! : (