Here are some low estrogen sides:
Dry skin, dry lips, dehydration, loss of libido, good morning wood no wood when its time for sex, loss of wood while having sex, loss of sensitivity, dry gland (penis), white gland, loss of girth, irritability, mood swings, crying for no reason, dht rage (aggression you take out on others), dull orgasm, hesitation just before urinating, night sweats, loss of appetite, constant fatigue, lethargy, constipation (due to dehydration), diuretic effect (pissing more water than you are consuming), itchy scalp, obsessive thoughts.