Can someone please look at my daughter's blood test results

[Gatekeeper]

DD is 23 and has felt unwell for some months now. Tired to the point of real fatigue, brain-fog, sleeps 12 hours a night etc. She eats very well, beans, lentils, meat, lots of green veg, whole grains etc and doesn't drink or smoke. She had blood tests recently and GP has said "all normal"

I know that sometimes what they consider normal might not be actually normal for the individual so please can someone more clued up and intelligent than me have a look

Thank you

B12: 359
folate 7.6
Vit D 79
Ferritin: 61
TSH: 5.8
T4: 12.6

1. Your daughter is an adult and needs to discuss this herself with her GP.
2. Random strangers on the internet are not a good source of medical information.

What about ChatGPT OP?
Vitamin B12: 359 pmol/L
Normal range: ~140–700 pmol/L (varies by lab)
Your result: ✅ Normal, but on the lower side of mid-range.
If you're symptomatic (fatigue, tingling, brain fog), this could be worth monitoring, especially since some people feel best >400–500 pmol/L.
2. Folate: 7.6 nmol/L
Normal range: >7.0 nmol/L
Your result: ✅ Low-normal
Some guidelines suggest levels <7.0 are deficient, so you’re just above the cutoff.
Low-normal folate may still cause symptoms like fatigue or mouth sores. If diet is poor or absorption is an issue, consider supplementation.
3. Vitamin D (25-OH): 79 nmol/L
Normal range: 50–125 nmol/L
Your result: ✅ Normal, and pretty solid.
Optimal levels are often considered to be 75–100+ nmol/L, so you’re in a good place here.
4. Ferritin: 61 µg/L
Normal range (females): ~20–150 µg/L
Your result: ✅ Normal, but could be considered low-normal.
Some clinicians consider optimal ferritin for women to be >70–100 for energy, hair health, and iron stores (especially if symptomatic or menstruating).
Symptoms of low iron: fatigue, hair thinning, dizziness.
5. TSH: 5.8 mIU/L
Normal range: 0.4–4.0 mIU/L (many labs still use 0.4–5.0)
Your result: ⚠️ Elevated (suggestive of subclinical hypothyroidism)
Especially if you have symptoms (fatigue, weight gain, cold intolerance, constipation), this is worth discussing with your doctor.
Some guidelines (like the American Thyroid Association) recommend treatment if TSH >4.5–5, particularly if T4 is borderline or if you're symptomatic or trying to conceive.
6. Free T4: 12.6 pmol/L
Normal range: ~9–23 pmol/L
Your result: ✅ Normal
This level is in the mid-range, which is fine, but with your elevated TSH, it suggests your thyroid is needing to work harder to keep T4 stable.
🧠 Summary
TSH is elevated, indicating possible underactive thyroid (subclinical or early hypothyroidism).
Folate and Ferritin are both low-normal – may be contributing to fatigue or general low energy.
Vitamin D and B12 are fine, but B12 is on the lower end of optimal.
Action Points:
Monitor or treat hypothyroidism depending on symptoms.
Consider improving folate and iron (through diet or supplements).
Monitor B12 if symptoms develop or if vegetarian/vegan.
Would you like help interpreting these in the context of symptoms, or preparing questions to ask your doctor?

⚠️ Thyroid Function (TSH ↑ with Normal T4)
TSH of 5.8 mU/L is elevated, while T4 is normal, suggesting subclinical hypothyroidism.

In the UK, NICE guidelines recommend:

Rechecking thyroid function in 3 months.

Checking thyroid peroxidase antibodies (TPO) to evaluate for autoimmune thyroiditis (e.g., Hashimoto's).

If symptomatic (fatigue, weight gain, cold intolerance, etc.), treatment may be considered even in subclinical cases, especially if TSH >5.

📋 Recommended Next Steps
Repeat thyroid function test in 6–12 weeks.

Check TPO antibodies to assess for autoimmune thyroid disease.

Assess for clinical symptoms of hypothyroidism.

If TSH remains >10 mU/L, or symptoms are present, levothyroxine treatment may be initiated.

Monitor TSH annually if stable and untreated.

🩺 When to See a GP
If experiencing fatigue, cold intolerance, weight changes, low mood, menstrual irregularities, or hair thinning.

That's what chatgpt says, no idea if it's accurate

yeah, thyroid looks out of whack to me

Thanks for those with helpful advice. Dd is ASD and still needs and wants my input
She is always cold...even when weather has been red hot she has a blanket over her.
Will support her to go back to GP