I would give the same advice. There is obviosly a hormonal imbalance. You have to find out exactly what that imbalance is and then investigate ways to rebalance.
Get bloodwork done. Especially high sensitivity E2 and Prolactin as KSman recommended. Also total test, free test, thyroid (TSH, free T3, Free T4), SHBG (sexual hormone binding globulin), LH, FSH, etc.
In the meantime (especially if this is a recent development & before it sets in) use Nolva or at least an AI in the short term.
Saka: The Letro would not skew your tests if you disclosed the usage to your doctor. At least you would see where your E2 and prolactin levels are currently at regardless of the Letro. The Letro dose may be too low for you or it could be a prolactin issue. Maybe the doc will recommend cabergoline.