Addional assistance with energy

Hi all, so long since I was last on this forum, and what a change in format i’ve noticed. Anyway bare with me as I try to navigate this.
My question is despite getting help with my energy bills as most are, i’ve noticed on my smart meter i’m using upto £12 daily particularly in this extreem cold. A condition of my PPMS is a constant freezing left leg, of which i’ve been on steroids for, the best way to describe this problem is to liken it to my left leg (upto my groin) in a barrel packed in ice, hence my heating working overtime, also about four years ago i underwent surgery for TN and while that cured my problem, the extreme cold often causes me some facial pain.