Lightheadness and Nausea

I have been feeling extremely lightheaded for the past two months non-stop. This feeling has been accompanied by about a dozen episodes of blacking out on the brink of fainting. When these black out incidents happen, they happen out of nowhere and come on instantly. I begin to sweat and have cold/hot flashes when this takes place. I recently have become extremely nauseous, especially about 20 minutes after I eat. I wake up in the middle of the night feeling extremely weak and even more nauseous and lightheaded than when I am awake. Throughout the day I will experience occasional hot flashes. I also have a consistent feeling of chest pressure that sometimes mkes me feel as though it is hard to catch my breath. I have been to the doctor about eight times now, gotten an MRI, and echocardiogram and a 24 hour heart monitor. Also, I have had blood work done testing my basic hormone pannel, Lupus, blood sugar, thyroid, oxygen levels, diabetes etc...Basically all the tests that are considered routine for these symptoms. All tests were normal. My doctor makes me feel as though he thinks I am making these symptoms up. I am unable to get out of my house and drive since I am afraid to black out or pass out behind the wheel or in public. I dunno if this helps but I had a daughter almost six months ago, so could it be hormones, electrolights or a metabolic disorder? What about a digestive problem? I am so desperate to get back to life and having fun with my family. I need answers or suggestions of what else to check for...Anyone who has any advice please help me! Thanks! I am also on BC.

[steelerchick]

I posted a similar question below...I have similar symptoms and have passed out a couple times now because of it.  Some people in my life also seem to think its all in my head, but I am positive that there is something wrong.  I get a lightheaded dizzy feeling even when i'm sitting doing nothing.  Someone responded to my post suggesting that when he had these symptoms it was a blood clot.  I am also on birth control and even though its rare with the low-hormone pills they now use, it can cause blood clots.  My sister just told me of a college friend that has blood clots in her lungs from Yasmin, the same pill I use.  I had another round of tests performed and will hopefully get some answers this week, I'll let you know if I find anything out.  Also, have your platelet levels checked, mine were elevated...if that's the case with you, your doctor will know something's wrong and that you aren't making  it up.  I know how frustrating this is.  Good Luck!

[ktlulu]

go and get your tyriod checked chick i had those symptoms to i found out i have an underactive thyriod not saying that is what you have but it will not hurt to check it out good luck

[lyndzlungz]

I have the same problem,I wake up in the morn and have to eat within half an hour otherwise i just have to sit down with the faint feeling till i can finally get it togeather to put food in my system,sometimes crawling to the kitchen,the cold,the hot.I'm waking in the night more extreme thirst than hunger,finding it hard to breathe also.My daughter is 2 and I'm on my own with her all day and i'm frightened I'll pass out and no one will be there to help.
I'm coming off the jab currently with no signs of mensturation for the 2 months i've been off it.I also have a lump on my sternum which has become more uncomftable in the last 2 months,oh gawd I'm gonna die!! docs appointment at 4.20 today