hi, well i have posted here before a while ago as i seemed to develop sinus tachy during pregnancy. baby is now 15 weeks old nearly and i still have sinus tachy. i got from 5mg of bisoprolol to 1.25mg a day but started having episodes again. 2 nights ago i awoke with my pulse seemingly dong fast beats then slow beats and carrying on like that. so i went to A&E and they said ECG showed normal rythmn so to see the GP like i had arranged for today anyway as i felt the 1.25mg wasnt quite enough.
when i went i said i wasnt keen on taking more tablets because my pulse rate then drops into low 50s and i get those jump like palpitations that you feel in your chest. she said this wouldnt cause that. however the GP i previously saw said that would cause it and that i should take less tablets because its lile your body jolting you back into a normal rate. this sounded logical to me. but why does this other doctor say that wouldnt occur? and she said it shouldnt go too low a rate on 2.5mg. im more inclined to believe the previous doctor as she atleast took my BP etc when i went, this one just told me to take an extra tablet and said they dont know what causes sinus tachy and it is unfortunate that it has continued past my pregnancy.

so my first question is - which doctor was correct about a lower pulse rate?

and secondly. what does make sinus tachy occur after pregnancy. it has been a while now and i dont understand why im still getting these bursts of faster heart rates at times. its quite scary!