cj is absolutely right, all these should be slowly tapered off of. On the other hand, if all you're suffering is light-headedness, you're actually doing very well, and it may be you're nearly home free already. Hard to say, but don't worry, that's a very common withdrawal symptom, but one of the mildest. It's your choice now whether to be safer than sorrier, but again, you're really doing quite well. Try taking fish oil; it might help with the light-headedness.
Did you not taper off of the medication? If you didn't, then you are putting yourself through something that you do not have to go through in my opinion. When I came off of Zoloft, I did a very slow taper under the advice of my doctor which helped with withdrawals tremendously. What has your doctor told you about coming off of this? Keep us posted!