Hi JRB
I haven't taken HRT tablets but just would say it is good to increase the dose slowly as it does minimise the chance of side effects. Sudden increase in oestrogen (and progestogen) can cause undesirable side effects for some women. I would wait a few more days (so eg you have been on them 3 weeks) and if no improvement at all, I would phone the doc and ask if you can double it (ie take two tabs) so that it is the low dose.
I use patches and noticed improvement within a few days.
I can see the caution re the breast cancer potential risk, but under 60 the benefits of HRT are thought to outweigh the risks. There is a greater risk of breast cancer if overweight, inadequate exercise, smoking and too much alcohol, unhealthy diet, so if any of these need addressing I would deal with these and opt to increase the HRT!
This idea about experiencing symptoms in the future when coming off HRT - I am hoping that if/when I come off HRT the symptoms will be far less and anyway I will have had eg 10 years of good quality of life and when I am working, so any doc that uses that argument is talking rubbish!! I won't mind so much when retired, I hope! ( I am 60 - been on for 6 years - will be pensioner in just over 3 years!)
Good luck and let us know what you decide.
Hurdity x