So confused and dont know what to do!!!!

For the past 8 months, (I am 18 years old), I have been having these shaking attacks. You know, it's so hard to explain though. I begin to get very dizzy and I getthis weird.. almost vibrating sound in my head.. so I have to sit down VERY quickly.. and my arms and legs begin to shake rapidly, everything seems to go black and the whole time i get this weird.. buzzing noise in my head. I FINALLY decided to go to the doctors for it. He sent me for a MRI, Echo Test and also a EEG. I get my EEG results back today and I have the strongest feeling that they are going to come back normal, since my MRI and Echo test did. I am very angry. I want to know w hat the problem is, but I am not getting answers. Whats a family doctor know anyway? They dont specialize in the brain! I know you're thinking, why dont you go see a neurologist for further more in depth testing? I want to, but my doctor had said when i first asked him about it, "I dont know if we want to do that just yet." But in my heart, I truly feel that ther eis something wrong with me. Am i crazy or are they signs of some kind of seizure activity. I got my blood sugar checked. Just in case, maybe thats why it was happening.. but that came back normal. Everything is coming back normal, but why dont I feel normal sometimes? You know? I need your advice. I know you cannot diagnose me. But I dont want to waste my time if it doesnt seem like a seizure problem. The only answers I keep getting is NORMAL NORMAL NORMAL. I think its bull. Because people don't normally start shaking like that for no apparent reason. It doesnt happen to often. But over the past 8 months I would say it happened maybe 15 times. Lately, I have been getting VERY dizzy and do feel it coming on.. but i usually just lie in bed until the feeling goes away. It's just not a way to live life. Being afraid of when and where its going to happen.