Heart flutters 4 yrs/fast heartrate when standing/23yrs old/breathing problems. Advice???

For about 3 to 4 years i have had heart palp (flutters,flip flops,hard beat) I remember the first time i had it, i was hanging out at my b/f's house at the time (who is now my husband) I never noticed pain i would just freeze for a moment. They last a second or 2 then go away. They were ocassional but now more frequent the past year. I also noticed i feel like i dont get enough oxygen. I dont panic or have a breathing attack. I just breathe more and harder. Most of the time im just sitting there. That developed a few months ago. I also notced that when i stand my heart gets really fast. One time 6 months ago, I had surgery for an ectopic i lost ALOT of blood and had a transufsion. A week later my blood was good but was VERY dizzy when standing from probably not eating hardly anything. But when i went to the hospital they wouldnt let me leave because my heart would race to 110-120 when i would stand for a min or so. I assumed it was from all that blood loss and gain. But sometimes i will check my heartrate and its been over 100 at times just for standing. Then i would sit and it would go back down to 80. Im 10 weeks pregnant now. I dont have insurance until july 2009 so no one will see me or really do much testing. Any adive? Oh im 23 years old. My father had heart flutters for years and took meds. He claims hes fine now. My mother had some thyroid disease malignant cancer (spelling?) It wsa a diease that would destroy her organs or something like that. I dont know if shes trying to not worry me but she says shes fine.

I have Irritable bowel syndrom (syndrome) (not diagnosed) but my mother,brother and grandmother have it. I was always fatiqued and had low energy since middle school. I slept ALOT in high school. I think i might have blood sugar problems.(since high school) When i dont eat or skip a meal i shake, get really hot,dizzy,nauseas. I eat a fruit cup and feel better. My father has diabetes. He also has glaucoma which is what they think i might have but havent been able to see a specialist due to no insurance yet.