Since I was 16 I've had random 'dizzy spells' usually accompanied by fainting for a few seconds (I'm 19 now). About 4 months ago I had another dizzy spell..however I didnt pass out..but instead of feeling pretty much ok the next day like usual..I've felt lightheaded/heavy headed/had brain fog type symptoms constantly since. I went to see my doctor and she thinks I have an inner ear problem so Im waiting for an ENT appointment. To be honest I dont think its the case because I never really get vertigo or off balance feelings its just extreme lightheadedness. The reason I'm worried it could be a heart problem is because since that last bad dizzy spell Ive been getting out of breath at the slightest thing..things that wouldnt usually affect me..I've been having palpitations as well as sudden unexpected thudding/fluttering that seems to come from the middle of my chest and last for about 5 seconds but scares the hell out of me! Ive tried mild exercise at the gym like just walking on the treadmill and the heart rate monitor on the readmill said my heart rate was 190..which I dont really know if thats normal for exertion but it sounded very high to me. I've been waking up in the middle of the night in hot sweats feeling very lightheaded.

I have 'good days' where i feel still hazy/dreamy but better..and bad days where Im lightheaded all day..feel very ill like i have a fever or bad cold but with no cold symptoms..very tired..pressure in head and around eyes..blurred vision and trouble focusing on anything..tight chested (i sometimes get out of breath just from laughing or coughing for example). And when I have the dizzy spell I seem to break out in a hot sweat within seconds then after its stopped i feel freezing and am shivering. I also have noticed my memory seems very bad at the moment and I have trouble concentrating.

I went back to my doctor today..told her all this..she said I have a fever and my blood pressures slightly high (but probably because im worried she said)..so has sent me for blood tests but no ekg etc?? Does this sound like a heart problem? She also said it could just be anxiety but I cant understand how I was literally fine one moment and like this the next..im not an anxious person..I have had a panick attack once when in a very nasty situation and theres a big different in how it feels! I dont hyperventilate or feel panicked with these dizzy spells..just ill and like Im going to pass out. Friends and family who have seen me experience this also say I dont look like im having a panick attack.

Any advice would be great...unless this blood tests shows something I dont know what Im going to say to my doctor..I want my heart checked out but dont want to sound like a hypocondriac.