I didn't have either of them before I started Phen but I have had them in the past and they are a good idea. An echo helps your doctor check the overall function of your heart and sometimes it can help catch diseases in their early stages. It's non-invasive so it's not bad at all. I do ultrasound and I wouldn't lie to you about it.
Another good test that I've had is a nuclear medicine stress test, also not bad at all. The EKG is just a screener and is normally what you have first when you are having chest pain or an irregular heartbeat. Heart problems are widespread and it's always a good idea to have your heart evaluated.