So the last few times I've been to my prenatal appointments my bottom # on my blood pressure has been high. It's been like 118/93 and 123/98. We'll today I went in and my first reading was 135/110 then the nurse changed the cuff and took it again it was 112/98..then she came back in with a manual blood pressure cuff and took it again and she said it was 118/78..is this something to be worried about my doctor didn't seem to concerned...