Feeling cold for yrs, fainting during periods for yrs but sex hormone levels normal, lethargy often, constipation, high cholesterol- worth doing TSH?

YES!!! Plus CBC (blood count). Not sure why sex hormones (which ones) checked before CBC & TSH. Anemia (low blood count) could cause cold feeling, feeling faint & lethargy. Anemia often results from frequent heavy periods in young women. Hypothyroidism (underactive thyroid) can also cause feeling cold, lethargy, constipation & high cholesterol so definitely check both labs. Consider ambulatory blood pres.