I've been dealing with a really high pulse rate and Im not sure why. Every time I check it with my digital sphygmomanometer, it reads between 95 to 110, and thats without any physical activity. My blood pressure usually hovers around 105 over 55. On top of that, Ive been experiencing severe abdominal pain and a constant feeling of nausea for the past few weeks. Could these symptoms be related, and what should I do about it?