Welcome, its a tricky time to be female thats for sure - next time I am coming back as man, I am not kidding
As the other ladies have said, HRT helps with lots of things and the scare stories of many years ago were never proved to be accurate. Personally (I take Elleste Duet 2mg) I would rather have a good quaity of life in the here and now rather than worry about what might happen in 20 years. There is more risk of being over weight or drinking a lot than taking HRT.
Don't forget the GP's are just that "General" Practitioners" and whilst they know a lot about a lot, they don't all know the details. You could be lucky and get a sympathetic GP of course, or a well woman clinic but there are specialists recommended on this site and they are well worth visiting (I saw Kathy Abernathy in New Malden).
Don't worry and don't google either! CKLD is right, make sure your blood sugar is kept up by eating little and often - it does help
SP x