I have been trying to come off this medication after being on it ...

I have been trying to come off this medication after being on it for several months up to 150 mg. I didn't realize I needed to taper off so gradually, so I started cutting up my pill for several days at smaller dosages and then I just tried to go two days without and the withdrawal symptoms are horrendous. My head feels like it has imploded, high blood pressure feeling, dizziness, high anxiety, confusion, pressure all over, blurred vision, constant tick in my eye over the past few days, insomnia, trouble breathing, body aches, sick feeling, extreme fatigue, nausea. I just had to go back and take some more out of desperation. It's so frightening. Taper off this drug S L O W L Y!!!!