Consistently low FSH and LH; T not the best either

[DEFresh]

Male in upper 30s. Struggling the past few months with depression, anxiety, insomnia and loss of libido. Some recent test results for your consideration. What could be causing the low FSH and LH? How can I raise these levels? Is there a relation between the low FSH+LH and the T? And should I undergo testosterone therapy? Thanks.

Nov. 2016

FSH: 1.5 (Low)

Reference range: 1.6 - 8.0 mIU/mL

LH: 0.5 (Low)

Reference range: 1.5 - 9.3

Sex Hormone Binding Glob: 30

Reference range: 10 - 50 nmol/L

Dihydrotestosteron: 25

Reference range: 16 - 79 ng/dL

Testosterone, Tot, LC/MS/MS: 295

Reference range: 250 - 1100 ng/dL

Testosterone, Free: 48.7

Reference range: 35 - 155 pg/mL

Sept. 2016

Testosterone, Tot, LC/MS/MS: 458

Reference range: 250 - 1100 ng/dL

FSH: 1.3 (Low)

Reference range: 1.6 - 8.0 mIU/mL

LH: 0.7 (Low)

Reference range: 1.5 - 9.3

July 2016

Testosterone, Tot., S.: 256.2

Reference range: 249 - 836 ng/dL

Sex Hormone Binding Glob: 24

Reference range: 10 - 57 nmol/L

Free Testosterone: 54.93

Reference range: 30 - 150 pg/mL

LH: 1.0 (Low)

Reference range: 1.7 - 8.6

FSH: 1.3 (Low)

Reference range: 1.5-12.4