I have been running 60mg/day of Tamox in hope of getting rid of lump behind nipple.It has been there for a while.I ran letro for almost 3 months without success.Nolva has worked for me in the past,i should have used nolva to begin with,but was told Letro would work better.Anyways,is my current dosage enough or should i bump it up to 80mg/day?