Dear Kat,
I would definitely see both cardiologist and your oncologist. I have been on Herceptin for one yr, no heart problems when I had last muga, probably due for one soon, my dr does them every 6 mo. I know my circulation isn't great as my feet get cold at night but I wear sox to sleep in and it helps. Hope you're doing better, please stay in touch as we all have the same battle.
ginkott1@aol.com