Something that I do think could be a factor here is my nutrition. I feel like I eat well – I eat a decent amount of vegetables and try to make sure I’m getting enough protein (especially as I don’t eat meat), but I feel like I could be doing more.

Bliss says there are several things to consider: blood sugar, iron, B12 and vitamin D.

Firstly, when it comes to my blood sugar, she recommends making sure my carbs are paired with protein, healthy fats and fibre-rich foods to stabilise any sugar spikes and crashes (which can contribute to fatigue). As someone partial to several slices of toast throughout the day, her suggestion seems valuable. “Instead of just toast, have eggs on wholegrain/seeded toast with mushrooms and tomatoes cooked in extra virgin olive oil,” she suggests.

When it comes to iron and B12, Bliss says that even with my diet, I could well be low in either. “These are both crucial for red blood cell production and oxygen transport,” she explains. “Low levels can cause fatigue, brain fog and shortness of breath.”

She suggests getting my levels tested with a GP and supplementing if necessary. “Ask for a full blood count, ferritin, B12 and folate – all very common deficiencies in people who don’t eat red meat,” she says.

Hall echoes the same: “Plant-based iron is less easily absorbed than the kind from meat, and even with a balanced diet, intake can sometimes be borderline, especially for women of childbearing age.” She also mentions B12 as well as vitamin D deficiencies, which is “another key issue”.

Bliss agrees: “Low vitamin D can leave you feeling flat, low in energy and run down, particularly in the UK where sunlight exposure is so limited for much of the year.” She (and the NHS) recommends all adults supplement vitamin D from October to April.

In fact, every expert I spoke to noted potential vitamin D, iron and B12 deficiencies. And so it’s fair to say this is something I’ll look into further.

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