Could My Recent Palpitations And Flutters Be Related To Anxiety?

Hi, for up to a month I have been having palpitations or flutters that feel like they re in my mid chest or neck area. Sometimes I get these from just sitting down relaxing but I have them mostly when I laugh, chuckle, shout or become stressed. I am diagnosed with anxiety and depression and I am on citalopram and propranolol, but I have never had these kinds of flutters before. There is no pain with them and they usually go within about 10-40 seconds, but they do reaccure under certain circumstances. I m not sure if this is my anxiety or something else.