Is it normal to have head pressure withdrawing from olanzapine?!

i have been on olanzapine for about a year now i have recently decided to go off it. i consulted my doctor and he said take 5 mg for 3 weeks taking it every second day. then 2.5 mg for 6 weeks. well i started this process on wednesday night so i was off my meds on thursday that day was great i had lotts of energy and i was back to being my self. so i take the med again that night. so friday i was all zombie like my usual medicated self. so anyway last night i didnt take my med again as told. i didnt fall asleep till 4:00 suffering insomnia waking up at 9:00 in the morning but it wasnt to bad because i had tons of energy and i felt all happy. so today it was great i enjoyed being back to my self again. untill around 7:00 i was like maby ill just stop it cold turkey. so the withdrawl gets really bad anxiety cant concentrate it feals like im going crazy. but the thing that scares me most is the horrible head pressure im just wondering if the head pressure is a normal part of the withdrawal? sry for the long story lol:P and i did take my med and im fealing much better but tmrw night i dont take it.