Trixibel--It takes a long time for some people. Like many of the symptoms associated with anemia you have it so long it becomes a part of you. One day you wake up and it's gone, you don't really realize it at the time.
I had palpitations after eating all the time and it wasn't even due to a large meal. It finally went away, but for me it was a while after the anemia was resolved because my bloods cells had to renew. I really don't think that you have an actual heart condition. If it doesn't resolve on its own then you will know.
Heart related palpitations--if you have an irregular heartbeat, arrhythmia or valve problems.
NON-heart related palpitations--meds, caffeine, alcohol, panic disorder, hormones-thyroid, ANEMIA.