Question and thought

Hi everyone, I am new here.

I haven't really been diagnosed with epilepsy yet but I do feel I may have it. It has taken me this long to realize this may be the cause of everything though. First, I have been getting migraines since I was 5 years old, no one has been able to give me a definite answer as to why I have been getting them.

Another thing is, when I was younger and even now in my adulthood, I would be "staring into space" at least that's why my teachers and my parents have always told me and considered it as staring into space, into my own world as most would say. However, I am now 30 years old, I still get the same migraines but worse and I still stare off, I have been doing it for so long that it takes a while but I can usually snap myself out of my deep stare. Also, during the night when I am sleeping, it's strange and hard to explain but I catch myself like fall or something. I'll be sleeping and next thing I know I'm waking up because I can feel myself lift up and fall back on the bed again, sometimes I wake my hubby up doing it and other times it sleeps through it,  I also found out that it runs highly in my family. I didn't know it until recently but my mom had it (she passed away in 2013), my grandma had it and 2 of my nieces have been diagnosed with it, my sisters both seem to be fine though. However, my question is, what are the odds that I have it? How can I get tested for it?