Age : 18
Sex : Male
Height : 173 cm
Weigh : 83.5 Kg
Existing Medical Issue: Depressive Symptoms
Current Medications:

Sertagress (25mg)
Licab XL (400mg)

Drug Use: None
Smoking Status: None

I have been experiencing depressive symptoms for over 2 years now and have consulted a psychiatrist for the same. I have been receiving medication for over 3 weeks. He recommended a bunch of lab tests to find/ rule out medical causes of depression. Among those tests was a thyroid function test. In the report, my TSH level is 13.86 uIU/ml against the biological reference interval of 0.7-6.4. According to my research on the internet, this suggests hypothyroidism. But I took the blood test soon after recovering from a high fever. So my question is whether TSH levels change during / after a fever. If so, by how much do they generally fluctuate? Or do I definitely have hypothyroidism?