I tried aromasin recently for the first time (never did an AI before) to get my estradiol down on TRT. Took 6.25mg EOD. It went down to 26 but it made my joints ache so much I felt like an old man. It also lowered my IGF1 by about 40. So between that and all the horror videos about AI's I was watching on youtube that were VERY compelling and had solid evidence to back them up, I stopped.
You have a higher E2 set point. 20s is fine on my cruises but for you it's not apparently. Need to establish what's optimal for you. Very individual stuff. I don't get those symptoms until single or even low single digit/zero E2. Basically, your experience is less about AIs and more about crashing your E2 by using too much AI. Not sure what you were running but you may not need an AI at all on that dose (which is a good thing).
BTW you can get those symptoms from dhts or equipoise crashing your E2 (I have). It's not specific AIs or the method you used to crash it.
Trying to be constructive and helpful just so this is read the right way.