Falling-down dizzy

[indigo39]

I've had some episodes in the past few years that I don't know the cause of...I didn't realize it was recurring until last week.  
I start out feeling just generally unwell for a day or so, then all of sudden I get very dizzy and nauseated, feeling like my head is spinning a hundred miles an hour and get hot and cold.  I can't see and I hear a loud ring/ buzz in my ears.
The first time I was walking when it started, and I kept running into walls until I finally laid down, and the dizziness lasted about 15 minutes.
The last time, it was much worse, couldn't get up off the floor for half an hour, and I kept vomiting I was so dizzy, and every few minutes I would pass out briefly for about a minute or so. I was also trying to talk to a friend of mine who was trying to help, and I couldn't seem to talk.
After it's over, I feel tired but completely fine.
I'm just unsure of what this is, and now that I realize it's happened several times, I'm thinking it might be more serious.  I'm 28, pretty healthy. Could these be some type of heart problem? The symptoms sound a little like what I've read of angina, but I don't know enough about that to say...

[indigo39]

As far as I can remember, I've had 4 episodes in the past 3 or 4 years...Day-to-day, I don't have any problem with dizziness or vertigo, and my blood pressure is fine.  Yeah, I do need to go to a doctor, but I don't have health insurance, so I can't go in just to talk about something that happened a few months ago...Thanks for the advice though.

[anacyde]

I've had episodes of extreme (room spinning, close my eyes and can't tell where I am in space) dizziness.  Happily these are infrequent and from all the testing I've had, it appears my spells are related to neck and jaw problems (affecting the ear/balance).  The big, big difference here is that you are passing out.  Anytime this happens, you need to be evaluated. Please see your doctor about this.

Best wishes to you.

[CollegeGirl143]

Anytime you lose consciousness you should see a doctor as soon as possible to try and identify the cause, the cause of these things can be very hard to identify, your best bet is to be seen by a doctor while you're having an episode... Some of what you describe sounds like vertigo and other parts sound like actual syncope/near syncope.. I would see my physician as soon as I could if it where me,  and discuss these symptoms.. How often do you have these episodes?