TSH 2.32 is within the reference range 0.27-4.2 for all adult ages in your area. TSH >2.0 can mean your thyroid is underperforming but NHS won't treat until your TSH is >4.2.
TSH is a pituitary hormone and it won't pick up on low FT4 and FT3 so it can be useful to have FT4 and FT3 thyroid tests. If either are below range it means you have secondary hypothyroidism and need thyroid hormone replacement. You'll probably have to order them privately as your TSH is not abnormal. You can order private thyroid tests from Blue Horizon and Genova via thyroiduk.org.uk/tuk/testin...
Low/deficient ferritin, vitamin D, B12 and folate can cause musculoskeletal pain, fatigue and low mood similar to hypothyroid symptoms so it may be worth asking your GP to test them or to order them privately via the link above.
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