Heart Rate - How quickly should it rise

Hi Guys,

I have had numerous tests on my heart due to chest pain which radiates through to my back so I am reassured that there is nothing seriously wrong with my body. I just have a question with regards to how quickly your heart rate should rise. On waking my pulse is normally anywhere between 40 bpm to 65 bpm, this is taken whilst laying down. On standing it shoots up to 98bpm to 110 bpm and does not go back down. I this normal in a 27yr old. I am on beta blockers which obviously help this but I take my pulse before I take the Inderal, ideally I would like to eventually stop the beta blockers but the fact that my heart rate rises so quickly scares me without the beta blockers. I then start to worry about what the hell my heart rate would go up to if I did any type of strenous exercise.
I know that I am medically sound but just wanted to hear of other peoples experiences and thoughts.
Thanks for your time
goodeys x

[dbab]

Have you heard of POTS (postural orthostatic tachycardia syndrome)? POTS is diagnosed when someone has a rise in heart rate of 30 beats or more within 10 minutes after standing up. I have been taking beta blockers on and off for about 4 years now due to tachycardia when I am standing up.  My rate is also about 60 bpm while i'm lying down or sitting but immediately rises to over 130 without beta blockers.  I don't even have to move, just stand up and my heart rate increases to over 130.  With the beta blockers my rate when standing is around 90.  I finally took a tilt table test about 6 months ago to confirm POTS.  My symptoms come and go.  I don't have to stay on the beta blockers all the time.  My first episode of POTS lasted about a year and a half and then, I was able to stop the Toprol  I could tell becaue my heart rate was very low and making me dizzy.  I was off the Toprol for about a year and a half and the tachycardia started coming back.  I got back on the Toprol for another year. I am currently on Toprol and doing fine.  I'm able to exercise.  I don't exercise strenuously.  Just moderate walking.  You might want to look up POTS and see if it sounds like what you might be experiencing.  Do you get dizzy?