I'm sorry you are still struggling to find an effective dose to make you feel well. I think the problem is that many doctors keep adjusting doses, maybe unnecessarily so, due to the TSH result only. They very rarely ask or query if the patient has clinical symptoms.
You are taking levothyroxine - what is your dose?
If you can get a print-out of your most recent blood test results, with the ranges, from the surgery and post on a new question for comments. If your GP hasn't tested recently Vit B12, Vit D, iron, ferritin and folate ask for these as we are usually deficient which can result in problems for us too.
T4 (levothyroxine), is the inactive thyroid hormone. It should convert to sufficient T3 (liothyronine) but sometimes we don't do it efficiently. T3 is the active hormone required by the billions of receptor cells in our bodies and the brain contains the most, so we must have sufficient for us to function normally.
Next time your blood test is due for your thyroid gland, make the appointment the earliest possible and fast (you can drink water). Also leave about 24 hours between your last dose of levo and the blood test and take it afterwards. These couple of hints mean that our TSH is at its highest and doctors nowadays only pay attention to it and adjust dose willy/nilly in order to keep us somewhere 'in range'. Whereas most of us feel best with a TSH around 1 or lower. Your doctor hasn't probably asked for a FT3 blood test and some labs don't do it if your TSH is in range. We need to know our FT3 occasionally particularly if not feeling to well.
Always get a print-out of your results from the surgery, with the ranges (labs differ throughout the country and it allows members to comment) for your own records and you can post them for comments.
Personally, without yet seeing your results I think you might feel better with a little T3 added to your T4.
"I am not a medical professional and this information is not intended to be a substitute for medical guidance from your own doctor. Please check with your personal physician before applying any of these suggestions"