started topamax up and i am taking 100 mg a day. I was told that once you stop and re-start you might not lose weight on it again. I am wondering why this is?

How come you will have every single other known side effect again and again and again but not the one single beneficial side effect?

I just started it saturday, for migraines. I started it back in April 09, and lost weight on it and it was GREAT. All headaches stopped, my mood evened out, this was a miracle drug for me! This was the generic brand, topapiramate. Almost immediately, my appetite was gone. I had one night of a weird experience where I didnt know where I was but then I was FINE.

Had to stop it due to losing my insurance/ lay off.

Finally got coverage back when I got a job again. Got back on topamax. But this time, i only get the brand name for some reason. Not generic.

Since I've been on it starting Saturday, it has been a hellish experience. Headaches, nausea, one minute I have an appetite and am very hungry the next I am disgusted at the thought of food almost like a binge type thing, feeling of crawling in my skin, RACING thoughts and I mean racing to the point its terrifying. I woke up at 1am the other night and I had random racing thoughts to the point the only way I could make it stop was to get up, go into another room, turn the light on and start counting to clear my head.
The list goes on…
trouble concentrating..
driving I feel like I am playing a video game my depth perception is off… I can describe it kind of as a feeling of being buzzed sometimes…odd…
random bouts of nausea….
random bouts of tiredness then energy…
generally feeling like I belong in a mental institution, like I feel like I could just say random things to people without caring…. loss of some inhibition. Not to an extreme, such as I wouldnt run around no clothes or anything… but I feel less likely to hold back on some things like verbally speaking out.

HELP!