Good morning Lindyloo29
HRT will sort out the flushes but I don't know enough about the other melds you are taking to comment on any interaction you may experience hopefully someone on here will be along to give you some advice.
I do take thyroxine and haven't had any problems with HRT although I did have levels tested more frequently at the start because you can sometimes need the thyroxine dose adjusting according to my GP so if you do start the HRT make sure you have your thyroid levels checked after a couple of months.
I didn't start to take HRT until I was in my late 50's and we'll post meno I just kept thinking it would all get better but unfortunately it didn't now I wish I had started earlier, So I wouldn't worry about starting at your age.
I don't each much sugar so cann't comment on that one.
Sorry I seem to have rambled on a bit I suppose what I'm trying to say is give the HRT a try and hopefully you will feel better soon.
Lanzalover x