Have you found that your menstrual symptoms changed with age?

I am now 38 and recently have been getting painfully bloated and gy before and during my period. It's different from the cramps I used to get (and still get sometimes). Today it was so bad I was afraid I had appendicitis. This never used to happen to me. Do these symptoms keep changing as we get older? Does it mean that I am getting nearer to menopause?