Well you're in the right place

If you have vaginal dryness, do read the vaginal atrophy thread on the Forum and get treatment - ring the Surgery and ask for 'vagifem', delivered by pessary, or 'ovestin' delivered by an applicator - I get on well with the latter. The idea is to insert every night for 2-3 weeks then 'as necessary', some find that every 3rd and 6th night enough: some require every night to keep the area plumped up !
As oestrogen levels drop off the body may become dry: inside and out, deep in the ears, skin, vagina, eyes ; muscles may become lax = aches and pains. It's The Change, does what it says on the tin

Some find that keeping a mood/food/symptom diary useful to chart progress. As for testosterone, it is 'off licence' for women so seeing a menopause specialist: not a gynaecologist: will give you an over all view as to what may be helpful for your symptoms. I would ask your Surgery to refer you to a Specialist Clinic ASAP as there are waiting lists.
GPs don't know a lot about menopause. If you find a good one, hang onto him/her

. Browse round, make notes. Ask away!