hi jen
im so glad to hear youve got a docs appointment on tues, please make sure you go, it needs checking out.
i dont want to worry you, and hopefully yours isnt the same as this, but my dad (65yrs old) has a heart condition and his heart beat would race for no reason too.
it got to be very very seriously dangerous.
he got himself a pulse watch to monitor his heart rate and sometimes it would go up to over 200 beats per minute, and when it got this high it would cause him to black out and have a cardiac arrest! luckily and thankfully he was always resuscitated by the paramedics when we had to ring 999.
he is on medication to control the condition now and has a defribrilator implanted in his chest which will kick in if/when his heart beat races at a dangerously high speed, the defib does the same job as the shock pads paramedics use to shock him back to conciousness and regulates his heart rate again.
thank god hes ok now and has been for the past 18 months or so without any reaccurancies, it was such a worrying time for us all and would never ever want to go through it again.
now i know that all sounds very extreme and i sincerely hope your occasional speedy heart rate is down to something more simple and can be easily sorted... but, please, please keep your appointment at the doccies wont you, its not something you can ignore in the hope it will go away... hark at me! - im the worst one for doing that! lol ...
let us know how you get on wont you
take care x