I work night shifts, my bp is usually 140/100 and resting heart rate is 104. should i see a doc? is something wrong with me?

Yes & yes. At your: age you need an evaluation to determine the cause of your early-onset hypertension & mild tachycardia ( rapid heart beat). List all prescription, OTC & homeopathic or " natural" medicines you take; include all stimulants you use to stay awake to work night shifts. Learn your family medical history. Be honest & open about your lifestyle during your doctor visit. Take care!

Yes: for an otherwise healthy 24 yo those numbers are not normal. bP ought to be 130/80 or less and resting heart rate 60-80 Bpm. Non cardiac (such as thyroid) and cardiac causes ought to be considered