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?

[jconcerned424]

I am 27 years old and am going through the same thing. I've been to the ER and had had rates of up to 180. They did EKG and monitored me the whole time that I was there and said everything was normal, and sent me home with .25 xanax. Which really don't seem to do anything! My doctor even thinks it's anxiety but I've been on the meds for awhile now and nothing seems any different to me. I can feel my heart rate go up and down all day, and I'm not over exerting so it's strange, but I can especially tell first thing in the morning. Shortly after I get up I can tell it's faster than what it should be. I have 3 children and I don't really have alot of time to deal with all of this, but it worries me to know my body is acting so strangely all of a sudden.

[ashjdancer]

I am glad that I could help. Let me know how it goes. :-)

[RN2BRED]

Oh my god,

I've Been feeling like this for years, all the doctors say is that I have anxiety, but I know it's not true! It was this past Monday when I was standing up for 5 minutes when I suddenly felt my heart besting so fast, I felt tired, so tired that I had to sit, I almost passed out!  I went to the ER and they found nothing!  Going to go see a cardiologist soon, gonna ask them to do the tilt table! I still feel the same, my heart rate raised when I stand up, up to 130 at times, but as soon as I sit down it goes back to my normal 70-80bpm.  I feel do tired, I just want to stay in bed at times. The worst thing is that I am 4 months pregnant!

[Tmarie36]

I am pregnant and have the same thing. Resting heart rate of 60. Stand and it jumps to 130. How did your pregnancy go? Did you figure anything out?

[ashjdancer]

I don't know if you have heard of this or not, but I have a heart condition called Neurocardiogenic Syncope. I am 20, this condition started when I was 18 and has continued to get worse. When I am sitting my heart will be around 78 but as soon as I stand it jumps to 120-150. To test this condition they do a tilt table test. They strap you to a table and put you in the standing position and basically wait to see if you pass out or not. They monitor your heart rate and blood pressure to see what happens. There are a few different things that they do to attempt to treat this condition, unfortunately none of them worked for me. Some days are ok and some days are terrible. On the bad days I can barely get out of bed, because if I stand up I will pass out.
To break it down, what happens when I stand is, my blood pressure drops and so my heart rate races to compensate for it, and then they both get tired and I pass out.
I hope that this might be some help to someone out there. I know how frustrating it is to not know what is wrong with you.

[ycats3148]

omg1 i have the same problem. start 2 years ago, i was on the atkins diet and i figured the rapid pulse was due to that. the scary thing is that im a nurse so i know about all the diseases. i was at work and i felt my pluse go up to 170bpm and totally freaked out. went to er and was put in the observation unit for 24hours. had an echo and heart monitor and was told everything was normal:( went to cardio dr and was told im ok. what the hell is going on with my body?? i know smoking makes it worse but im under soooo much stress i cant quit right now. im taking paxil 20mg daily but even if im relaxed my hr jumps. help:(

[jassamwhit]

im so glad to find this website & see that there are other people going through what im going through too .. i too have a heart rate that is going up and down constantly. it all started when i was 6months pregnant and went to get my teeth cleaned  at he dentist , once i got home i could feel my heart racing i went to the doctor & it was going at 200 beats per min , i went to the hospital & it had subsided .ever since ive ended up at the hospital with it going at 160 my highest . also it goes fast if i do the washing and even standing it starts to race and i have to lie down , ive been getting alot of extra beats and fluttering in my chest which makes me faint and hot . my doctor suspects svt and put me on medication . but i dont know whether he really knows what is going on. ive had the holter monitor for 24 hours and it diddnt show anything ,also ecg and echo came out ok . but its not playing up  all the time and usually when im having those tests im laying  down and my pulse is low .. please can someone shed some light on whats going on and what other tests i can get done to see if anything else is doing it .
anxious ..