Sounds like your gear is crap and you also don't know your body that well (no offense). Like jizmo said, nolva simply cannot cause gyno. If your gyno is getting worse, it's just alongside the administration of nolva and not as a result of the nolva.
If letro did nothing, then there's something terribly wrong here. A couple letro tabs that are legitimate should cripple your body. Your lipid profile would turn upside down and you should probably be feeling absolutely terrible - you didn't mention this. And because it did nothing, that leads me to believe it was pure trash or there's lots you're leaving out.
Letro should nuke any gyno that has a chance of "reversal". I use this term lightly and I'll explain why. The glandular tissue is said to be impossible to reduce, but mine has been reduced and I've seen it in countless others. I postulate that it can reduced in size if it's currently being exacerbated by hormones like estrogen, prolactin and IGF-1. BUT, sometimes it gets to the point where it can't be reduced. Letro will be your best bet. Nolva is a SERM and works differently, but it lowers IGF-1 which is another hormone that grows tissues. Halting the production of IGF-1 and either occupying the estrogen receptor in the nipple (which is what nolva dose) or lowering systemic estrogen (which is which letro does) is a good course to take.
If you have dostinex or prami, that would be another good route of attack. If you still have that lingering in your system and estrogen and IGF-1 start binding to the tissues in your nipple, your gyno flare ups are the result. That's why I think a lot of the "delayed onset gyno" phenomenon from superdrol started. People would take nolva which blocks estrogen and lowers IGF-1, but once those build up and make their way to the breast region you'll see the classic flare ups which happened down the road after cessation of superdrol.
Long story short, try getting any good AI as they generally do the same thing. But letro is a pretty sure bet if you can get some proper stuff. It's not that exotic and you probably just bought some shit letro. Get some kind of D2 receptor agonist to run alongside it, but ramp it up slowly and taper down slowly. Real drugs like this can screw up your dopamine and it's something we know very little about. But it can help. Sometimes you can get the puffy nips down and sometimes you can't. Sometimes you can get the glandular tissue down and sometimes you can't. It's a crap shoot and everyone's hormone profile and hormone response is different. Get some bloodwork to know where you stand and cross your fingers. That's the best you can do. Don't waste any more time and money beyond this, IMHO.
