You may or may not be able to have a g-spot orgasm for some it just isn't possible, it never hurts to keep trying but I don't think anyone here can give you the answers that you seek. I am not sure about the menopause thing but every person is different, so while some may lose sensation others gain much more. You won't know what will happen until you yourself go through it. For some G-spot just doesn't happen, it could be nerve endings, it could be scars from birth, there are many reasons It could also be that you feel you have never really enjoyed or had much sensation during intercourse so you mentally have blocked yourself from the enjoyment. I am sure others may be able to give you much more insight then me, I hope things work out for you Good luck!!