There is a strong family history of depression in my family but I haven't succumbed to it, thankfully. I've always held that life is too short, precious to be depressed. It sounds trite but it's rings law like natural law to me. To not enthusiastically enjoy life is imponderable to me.
You supply anecdotal evidence that depression is metabolic. I think long lasting, recurrent, and severe depression is probably bipolar disorder.
The happiness you describe is as incomprehensible to me as my experiences may be for you. A strange world this is.
"There is a strong family history of depression in my family but I haven't succumbed to it, thankfully. I've always held that life is too short, precious to be depressed. It sounds trite but it's rings law like natural law to me. To not enthusiastically enjoy life is imponderable to me."
Cleary it is imponderable to you. Like it is a choice. Your family must love being around you.