flouxitene increased b.p

i m on flouxitene m switched from citalopram to it…its my 8th week m feeling better but i still have headach, headwounding , and blood pressure is 152/120…before it was always low…now m surprised by this reading of b.p counter…how long it will take to go my headach n wounding and what is its affect on blood pressure? plz guide me help me .