I am frustrated and need help???

Okay, I am 30 years old and have had a very rough year. I lost a baby in the beginning of Feb. I then started having muscle soreness and went to a rheumologist and ran all types of auto immune tests. They call came back negative. I guess that is a good thing. I then started feeling really sick with really bad dizzy spells where I would be just sitting on the couch or a chair and had the feeling that I was spinning but the room didn't move. I then would get really sweaty and then get sick. I would have these out of the clear blue sky. I had never had these before. I have been seeing as what I call them my shooting stars in my vision as white lights. I don't have any headpain. I saw an eye doctor and got new glasses. It didn't help with the lights in my vision. I have been having these dizzy spells usually every 2 weeks. I have been seeing a neurologist whom ran an mri, eeg, and eng. I was just in the er this past week when I had an really bad spell when I got to work. They ran a ct-scan and it showed that I had a arachnoid cyst. I just saw the neurologist today and was told that he couldn't figure out why I was having the spells that I am having. He told me that he ruled out MS and epilsey. He told me that he thinks that it could be mirgaines. I just kinda laughed. I told him that I don't have really much pain till I have a dizzy spell which the pain isn't that bad. I am just really frustrated and I was hoping that I would know more today than just feeling let down again.

I don't know where to turn to now. My sister has suffered from migraines since she was nine years old. No one in our family has them except her. Is there a form of migraines that has really bad dizzy spells like the ones that I have and with little to no pain. I just need help.

Symptoms: spinning feeling, sweaty, puking, tired, lights in vision, numb feeling across my forehead, across shoulders, and back of neck.

thank you