Hello. last week i was walking to class and felt my heart skip a beat. i got an ekg and echo a month ago and they were normal. is this a normal?

Likely so: "skipping beats" as the general population puts them, are manifestations usually of premature ventricular contractions which a person with a normal heart may have from time to time. As a matter of fact, the great majority of people who experience them have no discernible cardiac issues. However, a work up such as the one you had is helpful to make sure there is nothing serious. Sounds ok in you.

Not necessarily : These tests are notoriously in accurate, especially for young women. If it occurs again, you need to seek help. You may also benefit from a session of multifunction cardiogram, a.K.A mcg. If you test normal on mcg, the chances are you are normal! http://en.M.Wikipedia.Org/wiki/multifunction_cardiogram.