Is this epilepsy or could something more significant be going on? Please help...?

I am a 32 y.o. white female diagnosed with epilepsy on 2/13/09. I had only started having 'severe' symptoms the two weeks leading up to the diagnosis including simple focal seizures and a fogginess feeling in my brain. The diagnosis was made after a GranMal seizure on 2/13/09. Since then I have been paying attention to my body more and noticed that I have been having frequent pressure like headaches. My balance is off at times - today I fell when walking up a hall because my knees gave out. My hands have been very shakey and I noticed that I have problems focusing on things initially until my eyes unfog. It is sometimes difficult to talk because my mouth feels stiff and I have occasional difficult with stiffness in my left hand. I have even started having an eye twitch where my eyes will blink rapidly for about 2 to 3 seconds and then stop. I have sporadic joint pain and recently started with sharp pains over the left side of my chest that feel like badly pulled muscles or something. I am starting to become worried that I might have an underlying cardiac condition or that I could possibly be in early stages of Multiple Sclerosis. Does anyone out there have any advise or insight on what could be going on with me? I can't seem to be relaxed about my health. I have a call into my neurologist but it seems like there is no way to confidently diagnos this without test after test and I am hopeful to find someone going through the same problems as I. Thank you for your feedback.