When I was 21, I had a 36 inch inseam. Since my late twenties I have worn pants with a 34 inch inseam until this last year. When I wear 34's, I now step on the lower hems with my heels. I recently tried on trousers with a 32 inch inseam....... they fit perfectly. What can account for this reduction in the length of my legs? I'm worried. I have lost 3 inches in total height since 1976 (starting from 6' 4 1/2"). I can account for some of it because of deteriorating discs in my spine. But I haven't been able to find any info that can explain the apparent loss in my legs. I am about 15-20 lbs. overweight. Thank you for your time.