I had low e2 after lgs 4033 use (it may have recovered later but i had less bad symptoms of low t years before, but it got way worse) it was <5 pg/ml e2. Doctors laughed at me for asking to get a "womans hormone" tested.
Tldr: low e2 for me causes anxiety, paranoia, obsessive/ptsd like thoughts/flashbacks, panic attacks, PSYCHOSIS, anhedonia, the wish to die every day.
Now on trt, when i try to dial it in, choosing protocols that in theory lower e2 (like more frequent injections like eod or ed) will cause the same low e2 symptoms i had pre-trt with less than 5pg e2 again. I had a kinda mild kratom withdrawal (which is a mild opioid herb) aftwr ~2 weeks of 24/7 use. It sucked but its no match to low estradiol, especially as im mentally damaged to begin with, and low e2 def is worse than any drug withdrawal i ever experienced. But well, doctors know everything better. I mean i could get a non-sens. E2 blood test (cant get sensitive) . It could show something like 50-70 pg/ml. So what. Its still low e2 as the symptoms match low e2 symptoms 1 to 1, and i experienced low e2 confirmed by bloods and it matches symptoms 1 to 1. I mad elike 50 threads in different pages but no one takes me serious and everyone trys to dind a diff explanation like well its dhea, its dht, its this and that, almost like people try to stwwr me away from the truth. With low e2 not even 2g of quetiapine (a dangerous antipsychotic overdose) or 40mg diazepam without any benzo tolerance (a BIG overdose would turn off those obsessive ptsd thoughts. ONLY t gel did, and when it did, i also had high e2 symptoms. But well "if you dont show meaningless bloods we won't believe you"
Take the example of an antipsychotic. It binds to dopamine and serotonin receptors to prevent dopamine from binding to them as high dopamine can cause psychosis.
If you blood tested for dopamine on an antipsychotic dopamine would appear normal or even a bit higher, since it cant bind to receptors and floats through the blood.
So a serum blood test of e2 doesnt mean ANYTHING.
You could have a sensitive e2 test of 60 and feel great,.maybe its dht or progesterone blocking e2 receptors.