Hello Rashid:
I am a Nurse and I live in the USA and I have thyroid disease. Mine is called Hashimoto's Disease.
Your TSH is elevated normal is (0.34-5.60) this suggests that your thyroid is not using T4 well enough. Our Thyroid gland makes 4 hormones and the two of them are T3 and T4. (There is a T1 and T 2 not used for this conversation). In a normal non thyroid person, T4 is made into useable T3. the gland converts it.
Symptoms of low thyroid( HYPO) are: Brain foggy, feeling tired/sleepy, feeling cold, feeling blue or depressed, dry skin and brittle nails, weight gain, muscle aches and pains, headaches.
Symptoms of high thyroid (Hyper) is rapid loss of weight, bug eyes, nervousness, feeling HOT, feeling anxious, heart runs fast, lightheaded. Famous American actor Don Knotts had this disease, if you remember him.
There are more but these are common ones.
Blood work should also include a mineral panel to include sodium, potassium, calcium, magnesium, iron and Ferritin levels, and Vit D and B-12. If you had that done and they are good, that is important to know. Also tests for TPO antibodies, is also recommended.
B-12 can be replaced by an injection. You may need to take a multi-vitamin if you have low levels of Vitamins. Most of us have low Vit. D too as it tends to go along with thyroid problems.
Some people start off with Hyper and then go Hypo, or they swing back and forth. Your doctor can prescribe thyroid replacement meds if needed. Explain all of your symptoms to your GP or a special doctor called an Endocrinologist. Some people can not convert T4 into T3 any more or well enough. So the doc. can prescribe the right med for you.
Many women get thyroid disease between the ages of 20-40 and after childbirth and some get it at menopause. Epstein-Barr disease is a known virus that can cause thyroid problems. It can lay dormant in the body and in some it attacks the thyroid.
Please see your doctor and keep a good log of your symptoms. Thyroid disease can run in families so think and let your doctor know if anyone else in your family has it, like an aunt or cousin. Ask other relatives.
If you go onto thyroid meds your TSH level will settle down. So follow up with your GP on this. You can live a good life once you have this solved. I got it in my 20's and I am 54.
I hope this helps. Be well, Shelly