New to epilepsy... Why so late in life??

I started to have seizures in 2015. I was taking Topamax for migraines. The very first time I took Topamax I had my very first seizure. Well, my neurologist figured let's just up the dose. As the dose increased and increase the seizures worsened and worsened. I had been on two previous anticonvulsant drugs for stabilizing mood because of bipolar disorder. I began to wonder if it wasn't all the anticonvulsant that caused the seizures in the first place. By the way I have focal seizures. They have always been complex partial seizures except for a couple tonic-clonic seizures and which I was still awake but not aware. I remember the first seizure I ever had like it was yesterday. My mom asked me where her purse was and then I just blanked out and then I just froze up like a board. I could hear people talking but could not answer. My eyes darted left and right vibrated like crazy. Things only got stranger from there. I started to have an aura that warned me of seizures to come. I would get this almost Pleasant sensation on my tailbone and soon found out that was the only warning I would have for a long time. Well that's the beginning of my story. I was recently put on Keppra but have found out that it makes me very tired and angry LOL which is not good for the fact that I have a 6 year old. Thanks for listening