Marle,
Stress has caused my blood pressure to go sky high, over stroke levels more than once. Headaches, anxitey attacks, shakes etc. So PLEASE DO NOT miss with this. Please go to the Doctor ASAP!!! Some of my worst attacks have happened after things calmed down, like months later. Stress can kill you and is nothing to play with. Please take care of yourself. If you can please take it easy until you see the doctor. Take a few minutes just to relax and think of things that you enjoy and take deep breaths.
Hugs and prayers coming to you