Your surgery hasn't really taken your HBA1C level seriously as you could be risking going into DKA and ending up in hospital like my nephew did. At the least they should be giving you good advice about diet (not the bad NHS diet advice). This means keeping the carbs way down, taking exercise etc. If you are slim you may well be late onset T1 and this can progress fast into DKA. Do get hold of a glucose monitor and if it reads into the 20s seek advice and if it reads Hi get to A&E.