I have the same exact problem now that I have been fighting for 2 weeks to the day! I finished a long cycle (2 cycles back to back) finished with a winny/prop/clen cycle. I was on for 18 weeks then did clomid and about 2 weeks after clomid therapy ended I got sore nips. And I have been taking 30mg of Nolva for 2 weeks now and .5mg of Arimidex for 4 days now. I am getting worried, they are REAL sore, don't seem to be any growth under them, but I cannot tell if it is normal what is there or gyno growth. I have alittle bit of a fatty chest anyway, so it is hard to tell. I just wanna know when the damn pain will go away? Shouldnt all old excess estrogen be out of my system and Arimidex prevented all new by now? How long till pain should go away?? BTW my first 10 weeks were sust500/deca400. it was my first cycle, and I am 24