You never want to use nolvadex with a nandrolone or nandrolone derivative (deca, npp, tren).
Are you using the proper support supplements with your cycle? Generally, getting gyno symptoms is the result of not using the proper support supplements with your cycle.
A test/tren cycle needs 3 main support supplements:
1. An AI like aromasin to keep estrogen in the low-normal range
2. An anti-prolactin drug like cabergoline to keep prolactin in the low-normal range
3. Cardarine to increase fat loss, endurance and prevent tren related side effects like tren cough
Cardarine isn't talked about much as a support for a cycle with tren but it is fantastic for preventing tren related side effects. Tren is notorious for negatively impacting endurance and causing insulin resistance. Cardarine helps prevent that immensely.