Hello thanks for asking from HCM for your health related queries
I can understand your concern. You have
hypothyroidism and even if your glands are normal and not swelled still your thyroid levels can be in deranged levels. So get your thyroid levels checked and if TSH comes in high range ask your doctor for dose adjustments. Such symptoms are common in hypothyroid conditions.
Other possibility is nutritional deficiencies. Low
Vitamin B12 levels, anaemia can present with such symptoms. Get your
haemoglobin and B12 levels done to rule out these conditions.
If everything comes normal then other likely possibility is
depression. Mild depression can present with such symptoms. Visit a
psychiatrist for evaluation of your symptoms and help. Medicines like Modafinil, Armodafinil can help to improve day time alertness and will help you. In persistent symptoms SSRIs can be used. Visit a psychiatrist for prescription.
Thanks, Hope this helps you.
Take care
Dr. Seikhoo Bishnoi
Psychiatrist.