Menopause?

It's been 2 months since my LMP, so I had a whole array of blood work done. Menopause was the last thing on my mind since I just turned 40 and I haven't missed any periods before. My estrogen, progesterone, and FSH levels were NOT checked for some reason, but my LH levels were. And I am still in shock that my LH level is 83.4. This is higher than the post-menopause charts even go. Since my LMP, I have had what I now understand as hot flashes and night sweats. I've had heart palpitations and extreme fatigue for the last year, but attributed everything to the fact that I was about to turn 40. Could I really be menopausal/ or even post-menopausal with that level? I feel like I had no warning, it was just here all of a sudden.