The diastolic is not high;ok, but the systolic is high (top number)
Eating vegetarian does not necessarily mean eating foods low in sodium.
I would have it rechecked prior to traveling again. Any possibility you can purchase a BP machine to take with and monitor your bp daily?
Hypertension is strongly genetic-linked. Both of my parents have it so I watch mine pretty closely.
I would see a doctor as soon as possible, 80 for diastolic is concerned "high" and I would get it checked, soon.
some family history of hypertension. i'm not a smoker. i drink maybe once a week. i'm also a vegetarian, can't imagine having a super high salt intake. I just realized i made a typo, my blood pressure is 145/80. not 145/100. that puts me ok i think for the dyastolic but i still don't understand the disparity.
Those BP numbers are way TOO high especially for a 24 year old. I would recommend following up with a physician ASAP before leaving out of the country again.
Any family history of Hypertension? Are you a smoker? What do you mean by you don't drink "much?" Diet high in salt? I know you mentioned the high stress levels you were living in; could be still affecting your body though you are not in Asia in anymore.