Electric currents symptoms and conditions

Hi all...I've been taking 25mg. of Topamax at night for 5 days now. Unlike most of you I have not experienced the tingling in the extremities or the weird taste in the mouth or even much tiredness at all other than what has happened as a result of my weird side effect. I was prescribed Topamax by my neurologist for my migraines. I've had them since I was 12 years old. I'm 49 years old. The got worse during peri-menopause which is kinda normal given the hormonal fluctuations, but was told by my neurologist that they would very likely subside significantly when I became menopausal. Well folks, I've been menopausal for 5 years and for the past 2 years my migraines have been the most horrific of my life. I have approx. 15 to 18 migraine days a month, some of the headaches lasting 3 bloody days. So it comes to this...Topamax. In the past I have suffered some pretty rare side effects from some very benign medications so I guess I shouldn't really be surprised that this is happening to me now. The first night I took it I slept like a baby. The second night I was slightly 'hyper' but managed to get to sleep. But for the past 3 nights it's been hell. When I lie down in bed, my body feels as though there are electric currents shooting through it and coming out my right leg. I have to move my right leg or go completely bonkers. Fortunately my daughter is away at university and so I can sleep in her room. So I lie there...on my left side...with my right leg hanging over the side of the bed swinging and swinging and swinging as hard as I can just so that I don't scream. It's awful. Last night was the worst. I saw dawn this morning. I just got off the phone with my pharmacist and he told me that I had described a classic case of RLS - Restless Leg Syndrome. And guess what? Topamax is used to trest RLS!! For bleep's sake! So nice people I am suffering a completely opposite side effect to the one that seems to be the most common one...tiredness. Has anyone else heard of this? Experienced this? It seems to all focus down to my right hip and leg. I have to move it vigourously or go nuts. I am so tired today but that's because I got like 3 hours sleep. I fell asleep from sheer exhaustion after my husband left for work at 7:30am.
A side note...I also take 75mg of Effexor for panic disorder and my neurologist told me that this is a very good mix of meds for migraine prevention. My top dosage for the Topamax will be 75mg taken at night.
I'd really appreciate any feedback on my side effect. Thanks in advance.

D.