When do you do cardio man? I always find it easier to just do the 20 minutes or w/e at the end of a weight training session. It's really hard some days, but I figure it's much easier to just hop on the damn bike and chug away for 20 minutes with my eyes closed and headphones blaring than it is to try to head down at night/early mornings and get it done then. It does take awhile to get used to eating so often, but you will eventually find yourself able to eat it all without any issues. I think the big key is variety in how you cook each meal too. It took me only a few weeks to say FUCK CHICKEN BREAST, because it was always baked and started to taste like ass to me. Shred it up, put it in salads or wheat tortillas with some lettuce and hot sauce. The only meal I eat consistently that doesn't get old is my "lunch" of rice and tuna. I don't know how i can continue to eat it without fail - but apparently I can!
Sounds like it's about time for a mid-cycle blood test. That will answer a lot of your questions about your Aromatase inhibitor (AI) and if you're seeing sides from high estrogen or not. I do think once you're done with this, you should do a PCT and get tested. I'm pretty sure I have the worst insurance known to man, and while my testosterone isn't covered, the visits are - which is fine by me. If you are indeed hypogonadal, testosterone replacement therapy (TRT) is a godsend and you definitely should look into it.
My .02c