My father is 81 and lies in hospital in intensive care. I keep company now to my mother also 81. I shared her bed for two evenings and in the middle of the night she has a very strong shake, I get a heart beat each 20 seconds, basically the whole bed shakes. She suffers hypertension , should I take her to hospital? This lasts for about 30 minutes and then stops and it all goes back to normal. Please helpBy: dewaard On : Mon, 31 Jan 2011 my father is 81 and lies in hospital in intensive care. I keep company now to my mother also 81. I shared her bed for two evenings and in the middle of the night she has a very strong shake, I get a heart beat each 20 seconds, basically the whole bed shakes. She suffers hypertension, should I take her to hospital? This lasts for about 30 minutes and then stops and it all goes back to normal. Please help. This just happend few minutes ago.