No need to split your arom dose up through the day. You can take 25mg of arom all at once. It's hard to say what the problem is. I would suggest getting some labs done to check your estrogen. You can try taking more arom or you could switch to something stronger like adex. If you are taking 1g of mast a wk, I'm not so sure than Proviron would change things much. It's similar to mast, as far as libido is concerned. I can tell you that for myself, once I get above 1g of test, libido begins to get weaker. At lower doses, I find it increases, but at a certain point, it begins to have an opposite effect. As my Dr has said, some things just go along with the territory.