im on my 4th week of test cyp 600 mg per week 2 shots eaverytime i inject the next day it hurts and i have a lump am i doing something wrong ? injection site are both ass cheek and once in my leg.

also taking 10mgs of nolva per will this help cut down on water retetion?

i also have a very bad cough i have has it for 2 weeks is this cause of the test?