Curious about thyroid tests and what they mean. I recently had some blood work run and my TSH was .807( lab range .350-5.5), T4(thyroxine)-10.3 (lab range 4.5-12.0), T3 uptake-25 (lab range 24-39), and Free Thyroxine Index 2.6 (lab range 1.2-2.9). About 3 months ago labwork showed that my TSH was 1.717 and the doctor ran a TPO Ab and it was <10. I have hypo symptoms but if I am looking at this correctly, then all of my bloodwork is in the limits range. Can the TSH change that much in 3 months time or is that not a great change? Also both LDL and HDL are high and were not high in the past year during other bloodwork. Please help