My blood pressure is usually 115/83 first reading in morning to evening, by late night it spikes to 130/90 after work, again 115/83 next day. Worried?

Blood pressure. Hi ZahraT, this sounds like a normal fluctuation in blood pressure and is nothing to worry about. Our blood pressure can go up in times of stress(work), exercise, after eating, and at times when we walk into a doctors office (white coat syndrome). The fluctuation tells me the system is working just fine.