To ask how you survive this cold as an office worker?

Good point. The OP is surely in a union. What is the actual temperature in the office and does it meet the legal minimum standard?

P.S. There is a legal minimum temperature for working conditions. If yours is too low, tell your union rep. (When I was working, my office was far too hot. Unfortunately, there was no legal maximum.)

Why not? My workplace encourages us to get up and move around regularly. It's unhealthy to sit for hours.
Just do.it

I get really cold in the office on mounjaro and the things which have helped me the most is having a hot drink all the time in a thermal mug with a lid so it doesnt cool down quickly. I can sip it and it keeps you much warmer. I also wear a good circular scarf which is thick but looks nice enough to look professional and I have some fingerless gloves for when my hands get cold. The biggest thing is plenty of hot drinks... That penetrates the cold more than external heat sources which just seem to make you feel colder in comparison later!

Put it on anyway. Who put him in charge?

Haven't RTFT but I have read all OP's comments. I do occasionally feel that cold and struggle to warm up so it might be a passing thing. However, my recommendations are 1) electric blanket. Absolute must! 2) LOOSE layers 3) fur lined boots (I got mine from Aldi a few years ago and they're magic!) 4) Wool. Merino is the best but expensive. M&S have some jumpers with wool for £26, plus there's 20% off at the moment 5) fingerless gloves 6) move as much as possible 7) hot drinks.

You can get some for a decent price from some of the big catalogue type and/or country life type companies like woolovers, fife country, house of bruar. Unfortunately they are not very fashionable but do a range of colours and styles so you can get exactly what suits you. I do think it is worth investing in a few expensive wool jumpers though - they may cost twice as much as another non wool jumper but they will last much longer and be a pleasure to wear time after time and more importantly they will keep you warm. For legs i wear cord or velvet. Velvet used to be cheaper and is probably now too expensive but you can get decent cord for a decent price. For socks - H&J Hall men's thermal wool socks - 100% worth the investment - they last forever.

You can buy heated jackets/gillets get one of those, but honestly if you think it is your medication you might never feel warm , How is your iron levels low iron can make you feel cold.

I haven’t read the whole thread but have you had a blood test to check your thyroid? Weight gain and extreme sensitivity to cold are classic symptoms of an underactive thyroid.

What is the actual temperature in the office?

OP, I’m NHS and mixed frontline/office. I feel your pain about terrible heating and ac. Our building has barely functioning heating and it’s either hotter than hell or not on.

I find on my wfh or office days I get much colder, and a lot of that is my hands getting cold on keyboards and phones. It chills me right down to the bone. I’m lucky my manager is very reasonable and lets me wear the Turtle Doves fingerless gloves which honestly makes such a massive difference. I just remove them if I leave the office.

Also, DP works outside in all weathers and I bought him a heated gilet. He says it’s amazing. The battery sits in the pocket inside so no cables to plug in.

Step has bought himself a chargeable heated body warmer for golf. Might that help?

You can buy a wrap that you can put around your waist and it gets heated via a USB cable that you can plug into your laptop. Maybe that could help?

thin layers for me too OP, and I agree with the wool recommendation. Mountain warehouse has good affordable layers which are 70% merino and keeping me warm this winter so far

Are you keeping your extremities warm? Socks and boots that go over the top of your trousers? Wrist warmers? I wear vest, thin long sleeved t shirt, a shirt and a sweatshirt to take on and off as necessary. I always wear trousers or jeans worth boots.

Are you fully wrapped up in your commute?

I have met people who don’t wear enough layers coming in and then spend the whole shift trying to warm up. When you leave your house make sure you are fully wrapped up with hat, gloves, scarf, warm socks and lot of layers.

It's the joy of being slim.
Get a heater for under the desk, don’t worry about the bill. There is money wasted every day within the establishment, including bonuses to higher members of staff.
You freezing, taking some heat is not going to make a difference.
Ask you're boss to increase the temperature or your requesting a heater, use a doctors note if necessary.

Bedsocks ! I find fluffy ones good, if you wear leggings or trousers you can wear plain socks over them. Also wear them in bed, cosy toes all night !

I would really think again about this one. Even a few minutes of movement helps. E.g. doing 10 squats (prob only takes 30sec). You may feel self conscious but it seems everyone has noticed that you're cold anyway. And, frankly, it's health and safety at this point. Or do it if you have a tea or loo break, it will increase your body temp for a good hour afterwards.

Wrist warmers, two pairs of socks, and boots that have a furry lining inside help me.

Ask for a portable electric heater to be supplied.

Get an accurate temperature reading there are legal limits I think.

Occupational Health may help too.