Such an incorrect statement. If any of the guys around here ever spent any time on an actual trt forum and not a bodybuilding forum, you might come to learn that many guys on trt need an ai to reduce estrogen and feel good. Plenty of cases of guys who go on trt because of low t and feel good initially, then feel like crap few months later, like they did when they had low t, find out estrogen is high, go on an ai and feel great. Me personally, 500mg test/week, no ai, within a few weeks, estrogen at 97. Me on 200mg test/week with 6.25mg aromasin, estrogen 22. When it comes to trt, the most widely accepted estrogen range is 20-30 and usually closer to 20. There are guys that aren't even on any test and still need an ai. Everybody is different.
To the op. It's rare but there is a condition people have where they just dont produce enough aromatase to convert test to estrogen. Not sure if there is a test for it but if you are feeling crappy and feel like estrogen is low or crashed, supplementing estrogen might be your best option. If you feel good, not sure I'd get too caught up on a number. I've had my estrogen crashed to a 3 and I knew it was crashed.