I am 47 and have joint and muscle pain, weakness, brain fog, fatigue, insomnia and weight gain. Trying to find root cause and not accept fibromyalgia diagnosis. Only medication is celebrex at this time. I have stopped all supplements as I have no idea what is helping and what is unnecessary. My diet is well rounded. I tried to add BHRT(hormones) last year but it made symptoms worse which from my reading leads to adrenals or thyroid. Does anything in labs look suspicious? All rheumatoid and inflammation markers come back negative. Doc ordered total t3 instead of free. Free t3...in Janurary was low=now Total t3 is high?
Your low normal fT4 and low fT3 suggest central hypothyroidism. I think we should ignore the total T3 figure as it’s not useful although it is a strange result. I don’t know of any interaction between citalopram and the thyroid (I’m not a doctor). Hypothyroidism can cause depression as well as the other symptoms and depression can cause central hypothyroidism, so only you can work out which is the cause and which the result. In either case I think you would benefit from thyroid medication, ideally liothyronine but if you can’t get that prescribed then levothyroxine.
I would try and find a thyroid specialist who is willing to prescribe liothyronine. It may be that you would be able to come off thyroid medication in time or you may need it lifelong. This depends upon the underlying cause, whether it is depression related or a hypothalamic/ pituitary problem. I’m guessing you are in the USA as your date format is not European (DMY).
As someone who also has thryroid results suggesting Central Hypo, Ive personally elected to try to sort my root cause which I believe is a prescription medication not included on lists Ive seen for CH - 1st 2 links below. Hence Im anti-meds, although I understand levo's role.
Note: interaction listed between celebrex and levo (3rd link below).
Free T4, Free T3, Vitamin B12, Vitamin D, TIBC, Iron and Ferritin are all a little low.
In terms of supplements, other than optimizing the above, what seems to be highly recommended for fibromyalgia is a good multimineral or himalayan salt/unprocessed sea salt, high doses of vitamin C (preferably in the form of magnesium ascorbate and calcium ascorbate) and magnesium (preferably magnesium malate and magnesium citrate).
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Advice on labs needed please 
Advice on Results Please 
Low Thyroid Symptoms/Lab Test Results June 2020
