I agree with einstein about the L-dex. I have recently seen a study showing a 27% reduction in anastrozole with Nolva administration(it's about 40% with letro), but anastrozole is going to be eaiser on your lipid profie, and it's time to steady state is 72hrs(letro is 2-6wks).
Also to note- The reduction of l-dex in the study I saw was concluded as insignificant, as the inhibition of estrogen was not effected by the reduction

If you've got a lump, you've got a lump and the Nolva is necessary; but I believe you BF is going to be a real psycological distraction on whether thei is improvement. Continue with nolva @ 60mg for 6wks TOTAL; if you dn't get anymore reduction in the mass by then, your stuck with what you got. Gradually decrease the nolva in 20mg incremints, with 2 days for 40mg(Mon-60mg, Tues/Wed-40mg, Thurs on- 20mg) and finish the cycle running 20.

If you've already got the letro, might as well use it. Run 1.25mg EOD. Make sure not to administer it any less/more frequently than that as it's half life is 2 days. In less and you could see a flux in estrogen, and more and your running too much. It's a very strong AI which I consider a bad thing, as you do not want to diminish estrogen below the optimal range you produce off cycle(18-67 pg/mL). Next time, use L-dex

Perscription prolactin inhbitors are to be last resort. Prolactin inhibitors are also DR agonists, which the manipulation of should not be something to take lightly. Use B6 instead for cycles with the inclusion of tren or deca. If your lactating beyond 600mg of B6 a day, then bromo(or another med) could be considered. Run the B6 @ 200mg for a maintenance dose