Holter monitor results

[Kay111222]

Hi everyone, I was wandering if anyone had any
Advice or info for me. I am 23 yo female who about a week ago noticed my heart would start to thump and race everytine I stood up, it would go from about 75 sitting to 100 standing, I went to emergency and they did a ECG
Lying down which showed a hr of 74 with normal sinus rhythm and then they did a standing ECG
Which showed a hr of 94 with normal sinus rythm. The next day the doc took my pulse sitting down which was 74 and standing was 110. My bp stayed the same, she ordered a holter monitor. Today I got the results and I don't really understand, it showed a regular rythm with a top hr of 157 while standing, a
Average hr of 72 and a low of 44. The dr said that in the conculsion it stated paroxymal tachycardia. I am about confused as to what that is? If its dangerous?
If it can cause heart failure or an enlarged heart, my doc didn't really give
Me any clear answers, she started talking about putting me on beta
Blockers but said because of the episode of brachicardia that could be dangerous, I am going to see another doc in a few weeks as I am not clear as what my previous doctor was saying. . Does anyone have any advice for me? I'm pretty worried, my other symptoms include dizziness, fatigue and tightness
In chest, thanks for your help

[CajunHeart22]

I have multifocal atrial tachycardia with episodes spiking to 250  bpm for my heart rate.  I have been treated with 50 mg of atenolol (a common beta blocker) for the past few years and it has been wonderful.  I have a resting heart rate while awake of about 50-60 bpm.  Before the meds, my resting heart rate was in the 70s and 80s.  Your doctor is right to worry about prescribing these meds because they do lower your heart rate.  If I were you, I would try increasing your potassium and electrolytes within a normal, healthy diet.  Try drinking a ton more water, especially in the summer and when you sweat, and add moderate, indoor exercise.  It seems to me that a healthy lifestyle and controlling any anxiety and stress could alleviate your symptoms.  Your body may just be dehydrated of fluids or electrolytes, which help conduct normal signals in the heart.  Don't be afraid to take walks and stay moving.  Just stay out of the heat and remain hydrated.  Even off my meds, I'm able to walk and stay moderately active.  Hope this helps.  :)

[Kay111222]

Thanks for replying, the doctor I saw was a gp and wasn't my usual dr, I'm not sure she really knew what she was talking about, the actual report said paraxomal tachycardia so I'm just wandering what that is because she didn't really say, I'm going to go to my regular doctor when she gets back in 3 weeks but I'm pretty worried as before a month ago my heart rate was always normal. I am not overweight but apparently in the normal ranges for my height. My weight was always steady, never changing but in the last 2 months I gained 6 kilos with no changes to diet or exercise

[ireneo]

Did you see a general practitioner or a cardiologist? A heart rate jumping to 157 just because you stood up is a bit much. Even if you were obese and terribly out of shape, the heart rate would raise momentarily when you first stood up, then gradually drop to a more normal rate.

Did the doctor make any comments about a follow up? It would be good to know what's causing the extreme changes in HR.