What Are The Uses And Side Effects Of Aromatization?

I have been taking testosteron cypionate injections for over two years now. For the last year I have been really exercizing a lot. Cardio everyday, weight lifting every other. However, I can't seem to get my waist level lower than 38. I have a new urologist who ordered an estradiol test. The results are not back. I found out what the test is for. If this test comes back high, it may answer my problem with my waist line. If it comes back high, I need to find out why it took two years for someone to test for it. How long could the aromitization of the testosterone had been going on, with all the dangerous side effects.