Hi all, due to pain/numbness in feet and lower legs (over past few months) plus needing to drink stupid amounts of water - I decided to order a tester yday. First reading was 27.7 (no food for 2 hrs), then left it a while and tested again at 27.2 then final time prior to bed (no food 4hrs+) reading 26.7... being totally new to all this should I try and get in with my doctor in next few days or is it more serious?