I had an endometrial ablation in 2005.
After 3 years without a cycle, I started having a "normal" cycle again.
Every 30 days pretty light (for me) that lasted 4 days.
However, the severe cramping I have endured is new for me.
I had occasional menstrual cramping before the procedure, but now
I suffer with severe cramping and Aleve does not touch the pain.
Also, this cycle has come 21 days after the start of my last cycle.
Does this indicate the ablation has simply worn off or has it become
ineffective?

Have you had reports of severe cramping post-ablation?