Extreme elevated heart rate with normal exertion - standing, walking

[Pastorphil]

My daughter-in-law is experiencing unexplainable extreme heart rate elevation with normal exertion such as walking or standing from a seated position.  Emergency room personnel recorded a jump from 98 BPM to 130-150 BPM upon standing from a seated position.  Subject is 20 years old and in good health.  Symptoms started shortly after eating breakfast on a cruise ship. Cruise ship medical personnel diagnosed anxiety as a possible cause, but hospital ultrasound and CBC discovered nothing significant.  Yet the condition persists even when subject is under influence of doctor prescribed Xanax.  What conditions might be causing this problem?

[Tmarie36]

Any answers? I am 36 years old and have a resting heart rate of 60-65. I stand up and it immediately jumps to 120-130. I take a shower or a flight of stairs and so much faster. I have had ekg, ultra sound, 24 hr heart moniter. They say I have inappropriate sinus tachycardia and pacs and pvcs. But otherwise no worries. But I am worried. It does not feel good to have your heart double in rate every time I stand and then sit down and it goes down.

[cathed]

Could be mitral valve prolapse. I am currently experiencing that fast beat for the slightest movement. Put on procardia, and waiting on a heart monitor to wear for 2 weeks. See a cardiologist. Xanax is not the answer.

[john_kelleher]

I have genetic markers for low activety MAO and COMT which gives norepinephrine a long half-life.

[andy90210]

My heart rate has recently shot up as high as 160 when I walk around for 5 seconds and pick up something that i can easily lift. When i stand up immediately after being in a seated position without doing any physical activity my heart beat reaches anywhere from 110 to 130. The only difference is that i think i may have an enlarged heart or some type of pulmonary problem. This has been a problem for me ever since I overexercised from cycling. I also experience shortness of breath and i have an increase in abdominal girth. But for me I experienced the following symptoms in order
(1)Odor or Smell in my room with not enough air circulating through
(2)Developed Migraines and other headaches occured
(3)Problem with shortness of breath
(4)Increased abdominal girth (belly) felt full and bloated even when i did not eat or drink anything
(5)Hearing like a static type sound in one or more of my ears
(6)A month later seeing flashes in both eyes
(7)Getting more fevers that come and go throughout the year
(8)I have had rapid/irregular heartbeats that come and go anytime with or without doing anything
(9)Recently having rapid heartbeats shootup suddenly after immediately standing up after a seated position while after sitting straight up and not doing or saying anything
(10) but my heart beat shoots up even more when i start walking around even for 5 seconds. even gets worse if i have to pick something up.
(11)harder to breath when i lay down on my side, when this happens feels like air is restricted and am feeling pressure in both my belly and chest, but never a sharp pain.

[Jodyrobin]

I have no advise,but to say that I have had premature ventricular contractions for years  and 6 weeks ago during surgery/recovery I had tachycardia and my premature contractions/flutter as you say has disappeared and have had ongoing heart rate of 80/90's sitting and emediately upon standing goes instantly 125-166 for 6 straight weeks non stop.your condition sounds similar.I have chest pain shortness of breath and frequent head pain when rising.I'm having echo-cardiagram/nuclear stress test and halter monitor this week.Hope your condition gets better.

[MikeStags]

Yes, it is possible.  Tell you doctor or go to a neurologist that can do the testing.  Not diagnosing you, but it seems like a good idea.