Hi Maggie,
In my books that is a high heart rate and if it was me I would want to know why as well. I would make an appt. with my rhuemy and see if he may have a suggestion. Also demand to be referred to a cardiologist.
I am glad to hear the medication is helping but you need to get to find out the cause and not just treat the symptoms.
I also would replace my morning coffee with decaf just to be on the safe side. I can't imagine 1 daily cup causing that big of a jump in heart rate but you never know, you might have developed a hightened sensitivity to caffeine over the years. I can imagine having such a fast heart rate must exhaust you quickly. Keep pushing until you get an answer Maggie. Good luck and let me know how you make out. Take care!
Debbie
Plant a seed of friendship; reap a bouquet of happiness.