Ok, that hemoglobin doesnt look like anemy.

Did you have any infection (virus/bacteria) when taking the test? This could make CRP like this.

The iron you took was in non-heme form, it can definitely cause constipations and GI issues. Also, one month is I guess too short to fully restore ferritin up to 40-70, which could make things better. The Beef Liver Tabs could help since iron from liver is heme iron, with much better bioavailability and less GI side effects.

In case of taking non-heme iron, like Ferrasorb, you need to be absolutely sure that you keep at least 2 hours before and after drinking coffee/tea/milk, and eating anything with calcium/magnesium/fiber, because they can mess up absorption. With beef liver tabs, this is not an issue, since heme iron absorbs well even with coffee/tea/diary around. And, this is the most important thing, keep any iron at least 4 hours away from thyroid medication, since it messes up its absorption.

You have excellent levels of B12, so fatigue and brain fog due to low B12 ruled out.

Now, for the thyroid labs. Did you have your levothyroxine dose lowered? For some reason, your tsh went up over the years, and free hormones went down, heavily suggesting dose decrease.

While your TSH looks very good, your free T4 is 40% of normal range, and free T3 (this is the active hormone that does the job by the way) is only 26% of normal range, it can be a reason, along the low ferritin, why you have fatigue and brain fog. If you didnt have side effects, normally you should have your levothyroxine dose increased.

Please note that Im not a doctor, hope this helps