I am having problems with a sort of horizontal jumpy jerky playback on my video recordings. My camera is on a tripod but it looks as if someone is nudging the camera slightly to the left and right. It comes and goes in shooting but seems to be more pronounced with closer shots and often seems to be triggered by my hand movements in the video (painting demos) It might be best to see part of the video to get an idea of the problem. link is here, best is to go to around 38 sec into the video https://www.youtube.com/watch?v=RLh2e3Qg3pU&t=87s

Thanks
Mark