I find I am really fatigued in the mornings and checking my BP monitor found my blood pressure to be very low, i.e.78-90 apart from taking salt and drinking plenty any suggestions. I have recently started Rivaroxaban 20 mg once daily is that the normal dose to start with. I was on warfarin for 2 years.I am bruising easily on my hands. Have recently undergone surgery and radiotherapy for breast cancer, finished 3 weeks ago, live alone so need to regain my energy. Happy valentines day.