Topamax - getting used to it and all the side effects

Hi,

I just wanted to share my experiences and see if anyone else is experiencing similar things while starting on topamax.
I am using it for Migraines and am in the process of titrating up to my goal dose of 100mg. Seems like I am lucky, as I don't get drowsy at all and I don't have any word-finding problems either. (I heard that many people experience those side effects with Topamax). Everything went well for the first two weeks, until the day I went up to 3 pills a day (75mg) when I noticed a rash on my forearms and my lower legs. The rash stayed for about 5 days and then moved from that area to my chest, shoulders and my neck. What was worse, was the itching that started slowly and got worse every day. First I thought - oh this must be the tingling/ the pins and needles, that everyone is talking about.....but it definitely turned into a full blown itch all over my body. My skin itched all over. My eye balls, my tongue, my skin, just everything. That lasted for 11 days straight. On day 9 - I got a B12 shot from my doc and 2 days later - silence. No itching, no rash for 4 days. Today, day 5, it's starting again. I am planning on going up to 100mg tomorrow to reach my goal dose....and frankly, I am pretty scared.
What is your experience with Topamax?