I like to use nolvadex for sensitive nipples and/or gyno. However, there are others...
If you go with nolvadex, start with 40 the first day, and 20 mg for the next 4 days and finish the last 2 days of that week with 10 mg per day
1-40 mg (divided in 20 mg in the morning and 20 in the evening)
2-4 20 mg (split pill in two and take half in the morning and half in the evening)
5-7 10 mg (same as above)
This should fix the sensitivity issues...
As a rule of thumb, for future cycles: always have caber, nolvadex, clomid, hcg, arimidex with you..just in case. I don't normally use an AI during a cycle, unless really necessary, but my cycles are low in dosages compared to others...I'm happy with my size...now I just safely maintain.