Hi Tingly
Taz & Limpy have already answered several of your Qs - and the others - because they are interrelated.
Re Q 1 & 4 These are also related. As Taz says ie you would need quite a high oestrogen dose to get rid of VA through systemic HRT, and re Q4 she said the test for VA is the presence of symptoms.
And like Taz and Limpy I also need local oestrogen ( ie vaginal) in addition to the oestrogen replacment through HRT (which eliminates the other symptoms and protects your heart and bones) and this has been suggested to you. The preparations are on the left here:
http://www.menopausematters.co.uk/local.phpif you want opinions on the different types then maybe start another thread.
Sex drive as has already been said has nothing to do with VA - only in that you mught not feel like it if you are dry. In addition to some HRT decreasing sex drive as Taz says, some increase it, and in addition as Taz says this is a common in menopause and a shock to many of us. It is thought to be due to declining tesosterone but this is not often tested for either by GPs or meno clinics and there are few proprietary preparations for women around. Here's some info on it:
http://www.menopausematters.co.uk/testosterone.phpRe Q1 there is no such thing as a right dose. Our bodies cycled monthly through lowish to very high oestrogen levels at ovulation and it is impossible to re-create this at menopause. Well very difficult. Most HRT aims to give a constant dose to boost overall levels and to minimise symptoms. This is often less than the optimum feel good amount. No reason why you can't have 100 mcg patch at your age. All increases in oestrogen need to be opposed by sufficient progestogen to protect the womb.
Re Q2 - this does seem to happen with quite a few women. I don't know why. One explanation is because you are peri-menopausal then it is your own cycle breaking through and this may well happen less as you progress through menopause. You may not shed all your lining if you have insufficient progesterone but usually the dose is designed to ensure that there is sufficient to oppose the oestrogen dose. However your own horomones could still cause the lining to build up as during peri-menopause there are often anovulatory cycles (no ovulation) therefore no progesterone, therefore the lining may continue to build. We are all unique!
Re Q3 to add to Limpy - simple answer - you won't while you are taking HRT. However your bleeding should get less unless you have problems eg fibroids or polyps. When you get later into your 50's the doc may suggest beginning to reduce your dose eg to 75 and then to 50.
Re Q5 - how progesterone makes you feel is a completely different issue to how much prog is needed to oppose oestrogen, They don't interact with each other and cancel out. If prog makes you feel bad (in what way ??) then more prog will make you feel worse irrespective of how much oestrogen you take. Most of us get some sort of reaction to prog or withdrawal from it - but if it's no worse than mild pms then that's the best you can hope for. Most gynaes would not recommend reducing the utrogestan dose from 200 mg if you are on 75-100 mcg oestrogen. If you are severely progesterone intolerant and under an NHS or private gynae for this, then they can do so at their dioscretion but you would need regular scans to ensure your lining didn't thicken.
Hope this helps and maybe start individual threads on specific issues if you want more info as it's a lot to read (and write!!)
Hurdity x