Mum said she was ‘fine’. Then I watched her try to put her coat on.

Mum stood in the hallway with her good wool coat. Right arm in, easy. Then the left. She stopped, turned a little, tried again from a different angle, and finally did this half-spin, half-shrug thing, like someone getting into a sleeping bag.

When she caught me watching, she smiled. ‘I'm fine. Go and warm the car up.’

I sat in the car and didn't start it for a minute.

Because I realised ‘I'm fine’ was something I'd heard on every single phone call for about a year.

Once I saw the coat, I started seeing everything else.

• The top kitchen cupboard was empty. Everything she used had migrated down to the worktop. ‘Saves time,’ she said.
• She'd stopped putting her hair up. Thirty years of the same French pleat, and now it was always down.
• She'd started getting into the car backwards to reach the seatbelt with her right hand.
• She asked me to hang the Christmas wreath. She has hung that wreath every year since I was born.
• On the phone, she'd started saying ‘I'm fine’ before I'd even asked.

None of it was dramatic. That's what made it easy to miss. She had quietly rearranged her whole life around one shoulder, and never said a word.

My mum raised three of us, worked full-time and looked after my nan at the end. ‘I'm fine’ isn't a mood for her. It's a personality.

She doesn't want to be a bother. She doesn't want to be ‘one of those people who goes on about their aches’. And she will absolutely not spend money on herself if it isn't the food shop or a present for someone else.

So if anything was going to change, it wasn't going to start with her.

Honestly? I'd tried before. Badly.

Every present I'd tried felt like homework, or like a reminder that something was wrong. She doesn't want to feel like a patient. She wants to feel like herself.

When I found the Olyra Shoulder Wrap, what sold me wasn't a promise. It was that it didn't feel like medicine at all.

It's a soft wrap that goes over the shoulder and does three things at the same time:

• Heat that relaxes: a steady, soothing warmth over the shoulder.
• Compression that holds: a gentle hug that keeps the warmth right where she wants it, no hands needed.
• Vibration that releases: a light massage hum under the warmth.

And it's cordless. No plug, no lead across the lounge. She can sit in her own chair, in her own spot, with the telly on.

I wrapped it up and put a little card on it. I didn't write ‘for your shoulder’. I wrote: ‘For the evenings you say you're fine.’

Two weeks after Christmas, my phone rang at quarter past seven on a Tuesday.

My mum never rings first.

‘That wrap thing,’ she said. ‘I put it on for the news. It's lovely and warm. Your dad wants to know if he can borrow it.’

That was it. That was the whole call.

But she said ‘lovely’, not ‘fine’. And I've been thinking about that ever since.

Dad got his own in January.

Something I didn't see coming: if one parent has a nagging shoulder, there's a decent chance the other one will want to ‘borrow’ the wrap.

If I did it again, I'd skip the borrowing and get two straight away.

That's the whole point.

Mum spent a lifetime making sure everyone else was warm. This year, it's her turn. Warmth, a gentle hug and a massage hum, in her own chair, every evening.

And maybe, the next time you ring, she'll say ‘lovely’ instead of ‘fine’.