Reassessment for older people

I'm on DLA & ESA in the support group for mental health problems. I've never been reassessed. I was initially signed up for DLA & incapacity benefit by my social worker in 2006. Another form/booklet thing was filled out by the SW some years ago, I think to transfer me to ESA. Other than that they contacted me a few years back to insist I be given more money. Apparently it was widespread I'm not sure why. It was a government edict & to do with being transferred from Incapacity Benefit to ESA I think. They also gave me a big lump sum to cover back payments. I refused because I was so scared it was a mistake but they said I had to take it. I didn't touch the extra for six months just in case. Every year I am terrified that they will say I have to have a medical. I am now 55yrs old. Do you know if there is a policy (official or unofficial) of not bothering to reassess someone once they are in their late 50s or early sixties? I wonder do the concentrate their resources on the younger ones. thanks Freda

I was reassessed out of the blue last year for esa wrag age 59 years old.
Luckily I was placed back in the support group.
I had been receiving esa for ten years before that.