Your TSH reading of 4.1 is within the old range of .5-5.0; however, it is significantly above the newly corrected range of .3-3.0. Along with symptoms of hypo thyroidism, this would usually be treated with medication to bring down your TSH and get your free T3 into the proper level. This assumes, of course, that the additional testing shows that your free T4 and T3 are not where they should be. If you want to do some reading about free T3, here is a good site.
http://thyroid.about.com/cs/testsforthyroid/a/freet3.htm
Let us know how your further testing comes out.
4.1 sounds normal to me for the TSH. My "papers" suggest that 0.40 - 4.50 is OK.
The three Ts are different thyroid hormones. Some go up while others go down. Maybe you'll end up like me--and have to spend a couple years with different docs before you find out what's wrong.