Hi Elmsey
What were you periods doing before you started HRT - were they pretty irregular and quite big gaps between them, or was your cycle still strong ie every 28 days or so mostly?
If your flushes are returning then it may well be that you will benefit from a higher dose (there is a 2 mg version of Elleste Duet). However some women also report getting flushes when on the type that you are taking - during the combi part of the preparation - so if this is happening with you maybe a different product might help such as Femoston which has a different progestogen. Also some of the synthetic progestogens ( like in Elleste) can give more pms type symptoms, whereas with Femoston this seems to be less likely (according to reports on here).
Perhaps give it another month if you can ( 3 months is the usual time recommended to try HRT before switching if you can cope) but make that doc appointment in case you need it so that you can discuss changing it if you see no improvement.
Hurdity x