Pounding Heart TCH

[danceswithrain]

Just finished my last TCH on Tues. Yah! The problem I'm having is with a pounding racing heart. Even at rest my heart is beating over 100Xs a minute. Sometimes up to 120-130 even when I'm doing nothing. I had a MUGA last week and it was 64%. I have been to the ER twice now. EKG's are ok as well as blood chems. Last night they gave me atavan and some channel blocker that got my rate down to just over 90. Which at least enabled me to sleep w/o feeling like my body was one big heartbeat. They don't know what is causing it except maybe the chemo. They are referring my to my internal med dr. tomorrow.
Is this just a side effect of the chemo has anyone else expericnced this?With my other chemo treatments I could get the pounding heart shortness of breath only if I was out doing something I would have to stop and rest and catch my breath. This time it's happening even after resting in bed for awhile.
I don't want to end up going through a bunch of cardio tests and stuff if this is just the chemo and it will go away. So I'm hoping someone can tell me whether this has been a issue for them.
Thanks hugs to all