### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
23/fem 12stone 5.6ft110/40 blood pressure is that ok?have started doing some stationary biking,10kmax.but have spent the last 7years very sedentary.agraphobia/monophobia prevented outdoor activity and i got depressed so i stopped engaging life.im now starting to get back to normal,was 17+1/2 stone,now a dedicated vegan and starting to up my exersize.ppl tell me my blood pressure is to low any advise is there something to worrie about?

### output:

Hello Dear, Thanks for contacting ChatDoctorI must first compliment you on changes in lifestyle you have adopted like vegan diet, exercise and stationary walking. Now coming back to Blood pressure reading of 110/40 you are having, I would recommend you to do self monitoring of Blood pressure (BP) at least 2 times a day at different times of day for 5 days, one can use these BP readings to come to a conclusion. Regarding reading of 110/40, your upper blood pressure (systolic-measures the pressure in arteries when the heart beats) reading is normal but lower BP reading (diastolic-measures the pressure in arteries between beats) of 40 mm Hg is low. A systolic blood pressure reading of 90 mm Hg or less or a diastolic reading of 60 mm Hg or less is generally considered low blood pressure (hypotension).  Two circumstances typically can result in extremely low diastolic blood pressure. 1- Severe hypotension- number of medical conditions may cause severe hypotension including heart problems which prevent circulation of blood in body, underactive thyroid (hypothyroidism) or overactive thyroid (hyperthyroidism), a Chat Doctor.  Some medications may also cause hypotension.  Other conditions, including deny