Hi Teresa – welcome to the ray on sunshine that is Shoot Up!
Yup – stress and excitement definitely effect my BGs – I hit 18mmol on the day my wife was made redundant a few years ago and we had to go round and clear her desk. Very stressful and very high BG.
However, that said; late twenties sounds somewhat extreme. Are you coming down with a cold? That always sends my BG high too. Mmmm….