Blood results back

I have been shaking and lost so much weight In the last 6 months. So I went to the Dr and had blood tests done. I see the results in my NHS app. Everything is normal apart from these flagged as abnormal.

Serum free T4 level 13.3 pmol/L Serum TSH level 5.19 mIU/L

Can anyone shed any light on this? Is this thyroid issues. I am struggling quite badly with symptoms and want to get it sorted.

Thanks