No never used an AI with 750mg
i hope some others chime in here as i don't consider myself a cycling guru by any means, but at 750mg a week with no AI you had high estro... maybe it never manifest itself as gyno at that time , but with that much test and even the 500mg you are running now ... you would have high estro. some people are more gyno prone than others so maybe you are less gyno prone and that's the reason you never had symptoms til now?
i would think with those levels of test an AI should be used regardless of gyno symptoms are not...
but as for what you need now... estrogen is the only hormone that causes lumps and growth (not prolactin)... but if you have excess estro and excess prolactin, that could be a terrible cocktail that might cause you to grow tissue and produce milk... get letro would be my advise and nolva... as for nolva and tren run together? someone else might know the answer...???.. but i would think control and reducing the gyno would be the most important, so i would use the nolva.
good luck my friend ....