Wow you are on a high dose of Keppra! I take Sundown Naturals brand of Vitamin B. I just started this brand. Since my Vimpat was increased last week I am having trouble falling asleep, but then I am falling asleep ALL day. I feel like the Vimpat wakes me up and night, but puts me to sleep in the middle of the day. I do not know how that is possible. I have also had a crazy week, so I will wait a bit before I call my doctor about the side effects. I cannot believe that this forum is not too busy. Do most BT survivors not have seizures? I just assumed most of us would. Maybe it depends on the location on the tumor, I dont know.